Overextension is just a number

It's an interesting question how well EU4 matches history. So I loaded EU4 history files, and checked - how much overextension would various countries have.

I'm counting all change of ownership events by their year only, except when province becomes colonized, assuming every overextension event lasts exactly 3 whole years.

As some situations are ambiguous, I did the simplest possible thing and notably did not consider:

• integrating subjects
• forming new countries (like Commonwealth or Russia)
• core reconquest
• getting free cores through independence
• administrative efficiency
• any special treatment of colonial nations, as they're treated as part of parent nation in history files
• only years where a country had 100% or higher OE are given

This way the list doesn't miss anything, even if it has some entries that probably shouldn't be there.

As you can see, overextension is just a number, and you should never be afraid to go over 100% or 753% for that matter (the record of 839% for Spain is a false positive).

So here's the list, with affected country, total OE, and previous owners:

• Afghanistan 1747 - 119% - Baluchistan 9%, Mughals 3%, Persia 107%
• Afghanistan 1748 - 119% - Baluchistan 9%, Mughals 3%, Persia 107%
• Afghanistan 1749 - 119% - Baluchistan 9%, Mughals 3%, Persia 107%
• Afghanistan 1752 - 135% - Bukhara 24%, Mughals 91%, Persia 20%
• Afghanistan 1753 - 115% - Bukhara 24%, Mughals 91%
• Annam 1802 - 103% - Dai Viet 103%
• Annam 1803 - 103% - Dai Viet 103%
• Annam 1804 - 103% - Dai Viet 103%
• Aq Qoyunlu 1469 - 363% - Baluchistan 10%, Bitlis 19%, Kharabakh 9%, Qara Qoyunlu 295%, Timurids 30%
• Aq Qoyunlu 1470 - 363% - Baluchistan 10%, Bitlis 19%, Kharabakh 9%, Qara Qoyunlu 295%, Timurids 30%
• Aq Qoyunlu 1471 - 295% - Baluchistan 10%, Bitlis 19%, Qara Qoyunlu 236%, Timurids 30%
• Aragon 1503 - 102% - France 91%, Naples 11%
• Aragon 1504 - 102% - France 91%, Naples 11%
• Austria 1458 - 104% - Bregenz 5%, Croatia 6%, Styria 93%
• Austria 1477 - 213% - Brabant 56%, Burgundy 73%, Flanders 42%, Holland 42%
• Austria 1478 - 213% - Brabant 56%, Burgundy 73%, Flanders 42%, Holland 42%
• Austria 1479 - 213% - Brabant 56%, Burgundy 73%, Flanders 42%, Holland 42%
• Austria 1526 - 283% - Bohemia 128%, Croatia 19%, Glogow 10%, Hungary 113%, Opole 13%
• Austria 1527 - 283% - Bohemia 128%, Croatia 19%, Glogow 10%, Hungary 113%, Opole 13%
• Austria 1528 - 283% - Bohemia 128%, Croatia 19%, Glogow 10%, Hungary 113%, Opole 13%
• Austria 1620 - 136% - Bohemia 136%
• Austria 1621 - 136% - Bohemia 136%
• Austria 1622 - 136% - Bohemia 136%
• Austria 1699 - 103% - Ottomans 68%, Transylvania 35%
• Austria 1700 - 103% - Ottomans 68%, Transylvania 35%
• Austria 1701 - 103% - Ottomans 68%, Transylvania 35%
• Austria 1704 - 113% - Bavaria 102%, Passau 11%
• Austria 1705 - 113% - Bavaria 102%, Passau 11%
• Austria 1706 - 113% - Bavaria 102%, Passau 11%
• Austria 1713 - 133% - Netherlands 49%, Spain 84%
• Austria 1714 - 306% - Netherlands 49%, Sicily 25%, Spain 232%
• Austria 1715 - 306% - Netherlands 49%, Sicily 25%, Spain 232%
• Austria 1716 - 173% - Sicily 25%, Spain 148%
• Austria 1718 - 152% - Naples 55%, Ottomans 51%, Wallachia 46%
• Austria 1719 - 152% - Naples 55%, Ottomans 51%, Wallachia 46%
• Austria 1720 - 117% - Naples 55%, Ottomans 16%, Wallachia 46%
• Austria 1797 - 166% - Commonwealth 56%, Venice 110%
• Austria 1798 - 110% - Venice 110%
• Austria 1799 - 110% - Venice 110%
• Austria 1814 - 315% - Bavaria 57%, France 70%, Italy 188%
• Austria 1815 - 315% - Bavaria 57%, France 70%, Italy 188%
• Austria 1816 - 316% - Bavaria 67%, France 61%, Italy 188%
• Bavaria 1714 - 113% - Austria 113%
• Bavaria 1715 - 113% - Austria 113%
• Bavaria 1716 - 113% - Austria 113%
• Bengal 1526 - 120% - Delhi 100%, Tirhut 20%
• Bengal 1527 - 100% - Delhi 100%
• Bengal 1528 - 100% - Delhi 100%
• Bengal 1540 - 332% - Mughals 332%
• Bengal 1541 - 332% - Mughals 332%
• Bengal 1542 - 332% - Mughals 332%
• Bengal 1543 - 105% - Gujarat 26%, Gwalior 8%, Hadoti 10%, Malwa 53%, Marwar 8%
• Bengal 1544 - 244% - Dhundhar 13%, Gujarat 35%, Gwalior 8%, Hadoti 15%, Jaisalmer 3%, Jangladesh 6%, Malwa 53%, Marwar 8%, Mewar 10%, Mughals 30%, Sindh 63%
• Bengal 1545 - 244% - Dhundhar 13%, Gujarat 35%, Gwalior 8%, Hadoti 15%, Jaisalmer 3%, Jangladesh 6%, Malwa 53%, Marwar 8%, Mewar 10%, Mughals 30%, Sindh 63%
• Bengal 1546 - 139% - Dhundhar 13%, Gujarat 9%, Hadoti 5%, Jaisalmer 3%, Jangladesh 6%, Mewar 10%, Mughals 30%, Sindh 63%
• Bengal 1707 - 244% - Mughals 244%
• Bengal 1708 - 244% - Mughals 244%
• Bengal 1709 - 244% - Mughals 244%
• Bohemia 1618 - 151% - Austria 151%
• Bohemia 1619 - 151% - Austria 151%
• Bohemia 1620 - 151% - Austria 151%
• Bukhara 1502 - 115% - Timurids 36%, Uzbek 79%
• Bukhara 1503 - 115% - Timurids 36%, Uzbek 79%
• Bukhara 1504 - 133% - Timurids 36%, Uzbek 79%, Yarkand 18%
• Bukhara 1507 - 139% - Khorasan 134%, Sistan 5%
• Bukhara 1508 - 139% - Khorasan 134%, Sistan 5%
• Burgundy 1475 - 104% - Friesland 24%, Gelre 29%, Lorraine 32%, Provence 19%
• Colombia 1810 - 156% - Spain 156%
• Colombia 1811 - 156% - Spain 156%
• Colombia 1812 - 156% - Spain 156%
• Colombia 1819 - 146% - Spain 30%, Venezuela 116%
• Colombia 1820 - 146% - Spain 30%, Venezuela 116%
• Colombia 1821 - 146% - Spain 30%, Venezuela 116%
• Commonwealth 1569 - 506% - Lithuania 204%, Poland 302%
• Commonwealth 1570 - 506% - Lithuania 204%, Poland 302%
• Commonwealth 1571 - 506% - Lithuania 204%, Poland 302%
• Deccan 1724 - 279% - Mughals 279%
• Deccan 1725 - 279% - Mughals 279%
• Deccan 1726 - 279% - Mughals 279%
• Delhi 1451 - 112% - Kashmir 7%, Sirhind 105%
• Delhi 1452 - 159% - Jaunpur 47%, Kashmir 7%, Sirhind 105%
• Delhi 1453 - 152% - Jaunpur 47%, Sirhind 105%
• Delhi 1486 - 152% - Jaunpur 152%
• Delhi 1487 - 152% - Jaunpur 152%
• Delhi 1488 - 152% - Jaunpur 152%
• Delhi 1553 - 146% - Bengal 146%
• Delhi 1554 - 146% - Bengal 146%
• Delhi 1555 - 146% - Bengal 146%
• Dzungar 1740 - 127% - Kazakh 127%
• Dzungar 1741 - 127% - Kazakh 127%
• Dzungar 1742 - 127% - Kazakh 127%
• France 1477 - 103% - Burgundy 103%
• France 1478 - 103% - Burgundy 103%
• France 1479 - 103% - Burgundy 103%
• France 1499 - 112% - Geneva 13%, Genoa 38%, Savoy 53%, Switzerland 8%
• France 1500 - 112% - Geneva 13%, Genoa 38%, Savoy 53%, Switzerland 8%
• France 1501 - 112% - Geneva 13%, Genoa 38%, Savoy 53%, Switzerland 8%
• France 1504 - 177% - Milan 86%, Naples 91%
• France 1796 - 113% - Austria 50%, Bavaria 51%, Sardinia-Piedmont 12%
• France 1797 - 314% - Aachen 14%, Austria 139%, Bavaria 43%, Liege 27%, Prussia 14%, Sardinia-Piedmont 22%, Trier 22%, Venice 33%
• France 1798 - 275% - Aachen 14%, Austria 89%, Bavaria 43%, Liege 27%, Prussia 14%, Sardinia-Piedmont 33%, Trier 22%, Venice 33%
• France 1799 - 220% - Aachen 14%, Austria 89%, Liege 27%, Prussia 14%, Sardinia-Piedmont 21%, Trier 22%, Venice 33%
• France 1801 - 163% - Cologne 27%, Mainz 10%, Parma 15%, Spain 34%, Tuscany 77%
• France 1802 - 173% - Cologne 27%, Great Britain 10%, Mainz 10%, Parma 15%, Spain 34%, Tuscany 77%
• France 1803 - 129% - Cologne 27%, Great Britain 10%, Parma 15%, Tuscany 77%
• France 1805 - 106% - Austria 40%, Genoa 38%, Lucca 14%, Prussia 14%
• France 1806 - 106% - Austria 40%, Genoa 38%, Lucca 14%, Prussia 14%
• France 1807 - 208% - Austria 40%, Corfu 11%, Etruria 77%, Genoa 38%, Lucca 14%, Prussia 14%, Ragusa 14%
• France 1808 - 111% - Berg 9%, Corfu 11%, Etruria 77%, Ragusa 14%
• France 1809 - 166% - Austria 9%, Berg 9%, Corfu 11%, Etruria 77%, Ragusa 14%, The Papal State 46%
• France 1810 - 383% - Austria 9%, Berg 9%, Denmark 20%, Hamburg 19%, Italy 21%, Lübeck 19%, Netherlands 211%, Oldenburg 7%, The Papal State 46%, Westphalia 22%
• France 1811 - 390% - Austria 9%, Bremen 16%, Denmark 20%, Hamburg 19%, Italy 21%, Lübeck 19%, Netherlands 211%, Oldenburg 7%, The Papal State 46%, Westphalia 22%
• France 1812 - 335% - Bremen 16%, Denmark 20%, Hamburg 19%, Italy 21%, Lübeck 19%, Netherlands 211%, Oldenburg 7%, Westphalia 22%
• Great Britain 1707 - 749% - England 658%, Scotland 91%
• Great Britain 1708 - 749% - England 658%, Scotland 91%
• Great Britain 1709 - 749% - England 658%, Scotland 91%
• Great Britain 1761 - 105% - Bengal 95%, France 10%
• Great Britain 1762 - 105% - Bengal 95%, France 10%
• Great Britain 1763 - 292% - Abenaki 6%, Creek 7%, Fox 3%, France 260%, Potawatomi 4%, Spain 12%
• Great Britain 1764 - 282% - Abenaki 6%, Creek 7%, Fox 3%, France 250%, Potawatomi 4%, Spain 12%
• Great Britain 1765 - 413% - Abenaki 6%, Assam 6%, Bengal 125%, Creek 7%, Fox 3%, France 250%, Potawatomi 4%, Spain 12%
• Great Britain 1766 - 182% - Assam 6%, Bengal 125%, Deccan 48%, France 3%
• Great Britain 1767 - 182% - Assam 6%, Bengal 125%, Deccan 48%, France 3%
• Great Britain 1801 - 212% - Carnatic 58%, Deccan 24%, Gwalior 9%, Marathas 26%, Mysore 48%, Oudh 47%
• Great Britain 1802 - 211% - Carnatic 58%, Deccan 24%, Gwalior 9%, Kandy 7%, Marathas 26%, Netherlands 30%, Oudh 47%, Spain 10%
• Great Britain 1803 - 311% - Carnatic 58%, Gwalior 74%, Kandy 7%, Marathas 27%, Nagpur 58%, Netherlands 30%, Oudh 47%, Spain 10%
• Great Britain 1804 - 187% - Gwalior 65%, Kandy 7%, Marathas 17%, Nagpur 58%, Netherlands 30%, Spain 10%
• Great Britain 1805 - 140% - Gwalior 65%, Marathas 17%, Nagpur 58%
• Great Britain 1818 - 240% - Baroda 31%, Gwalior 23%, Marathas 127%, Nagpur 50%, Nepal 9%
• Great Britain 1819 - 203% - Baroda 31%, Gwalior 23%, Kutch 3%, Marathas 127%, Nagpur 19%
• Great Britain 1820 - 194% - Baroda 22%, Gwalior 23%, Kutch 3%, Marathas 127%, Nagpur 19%
• Italy 1805 - 149% - Austria 86%, The Papal State 63%
• Italy 1806 - 149% - Austria 86%, The Papal State 63%
• Italy 1807 - 149% - Austria 86%, The Papal State 63%
• Jaunpur 1553 - 152% - Bengal 152%
• Jaunpur 1554 - 152% - Bengal 152%
• Jaunpur 1555 - 152% - Bengal 152%
• Kazakh 1755 - 122% - Dzungar 122%
• Kazakh 1756 - 122% - Dzungar 122%
• Kazakh 1757 - 122% - Dzungar 122%
• Khorasan 1449 - 159% - Afghanistan 47%, Timurids 112%
• Khorasan 1450 - 153% - Afghanistan 47%, Timurids 106%
• Khorasan 1451 - 172% - Afghanistan 47%, Ajam 19%, Timurids 106%
• La Plata 1816 - 125% - Spain 125%
• La Plata 1817 - 125% - Spain 125%
• La Plata 1818 - 125% - Spain 125%
• Manchu 1616 - 189% - Donghai 34%, Jianzhou 142%, Udege 13%
• Manchu 1617 - 189% - Donghai 34%, Jianzhou 142%, Udege 13%
• Manchu 1618 - 189% - Donghai 34%, Jianzhou 142%, Udege 13%
• Mexico 1810 - 681% - Lipan 3%, Spain 678%
• Mexico 1811 - 681% - Lipan 3%, Spain 678%
• Mexico 1812 - 681% - Lipan 3%, Spain 678%
• Ming 1648 - 154% - Qing 154%
• Ming 1649 - 184% - Qing 184%
• Ming 1650 - 184% - Qing 184%
• Morocco 1549 - 167% - Fez 56%, Tafilalt 83%, Tlemcen 28%
• Morocco 1550 - 167% - Fez 56%, Tafilalt 83%, Tlemcen 28%
• Morocco 1551 - 167% - Fez 56%, Tafilalt 83%, Tlemcen 28%
• Morocco 1668 - 107% - Tafilalt 107%
• Morocco 1669 - 107% - Tafilalt 107%
• Morocco 1670 - 130% - Sus 23%, Tafilalt 107%
• Mughals 1526 - 369% - Delhi 220%, Timurids 149%
• Mughals 1527 - 400% - Delhi 220%, Gwalior 8%, Sindh 23%, Timurids 149%
• Mughals 1528 - 438% - Bengal 38%, Delhi 220%, Gwalior 8%, Sindh 23%, Timurids 149%
• Mughals 1554 - 119% - Punjab 10%, Sirhind 109%
• Mughals 1555 - 249% - Delhi 130%, Punjab 10%, Sirhind 109%
• Mughals 1556 - 249% - Delhi 130%, Punjab 10%, Sirhind 109%
• Mughals 1557 - 153% - Delhi 130%, Multan 23%
• Mughals 1558 - 129% - Delhi 16%, Jaunpur 90%, Multan 23%
• Mughals 1559 - 129% - Delhi 16%, Jaunpur 90%, Multan 23%
• Mughals 1560 - 106% - Delhi 16%, Jaunpur 90%
• Mughals 1574 - 121% - Baglana 6%, Gujarat 73%, Navanagar 5%, Porbandar 5%, Sindh 32%
• Mughals 1575 - 178% - Baglana 6%, Bengal 57%, Gujarat 73%, Navanagar 5%, Porbandar 5%, Sindh 32%
• Mughals 1576 - 253% - Bengal 213%, Bishnupur 8%, Sindh 32%
• Mughals 1577 - 221% - Bengal 213%, Bishnupur 8%
• Mughals 1578 - 164% - Bengal 156%, Bishnupur 8%
• Mughals 1686 - 120% - Bijapur 120%
• Mughals 1687 - 254% - Bijapur 120%, Golkonda 134%
• Mughals 1688 - 254% - Bijapur 120%, Golkonda 134%
• Mughals 1689 - 134% - Golkonda 134%
• Muscovy 1478 - 128% - Novgorod 128%
• Muscovy 1479 - 128% - Novgorod 128%
• Muscovy 1480 - 128% - Novgorod 128%
• Naples 1734 - 157% - Austria 157%
• Naples 1735 - 157% - Austria 157%
• Naples 1736 - 157% - Austria 157%
• Netherlands 1549 - 178% - Spain 178%
• Netherlands 1550 - 178% - Spain 178%
• Netherlands 1551 - 178% - Spain 178%
• Netherlands 1813 - 204% - France 204%
• Netherlands 1814 - 204% - France 204%
• Netherlands 1815 - 362% - France 345%, Great Britain 17%
• Netherlands 1816 - 158% - France 141%, Great Britain 17%
• Netherlands 1817 - 158% - France 141%, Great Britain 17%
• Ottomans 1516 - 208% - Dulkadir 23%, Fadl 11%, Hisn Kayfa 6%, Mamluks 119%, Persia 49%
• Ottomans 1517 - 349% - Fadl 11%, Mamluks 324%, Persia 14%
• Ottomans 1518 - 349% - Fadl 11%, Mamluks 324%, Persia 14%
• Ottomans 1519 - 205% - Mamluks 205%
• Ottomans 1536 - 100% - Persia 100%
• Ottomans 1537 - 100% - Persia 100%
• Ottomans 1538 - 182% - Mamluks 46%, Mikhlaf 7%, Persia 118%, Yemen 11%
• Ottomans 1540 - 104% - Dongola 6%, Mamluks 46%, Mikhlaf 7%, Persia 18%, Venice 16%, Yemen 11%
• Ottomans 1590 - 122% - Persia 122%
• Ottomans 1591 - 122% - Persia 122%
• Ottomans 1592 - 122% - Persia 122%
• Oudh 1724 - 115% - Mughals 115%
• Oudh 1725 - 115% - Mughals 115%
• Oudh 1726 - 115% - Mughals 115%
• Persia 1501 - 103% - Aq Qoyunlu 68%, Ardabil 9%, Shirvan 26%
• Persia 1502 - 103% - Aq Qoyunlu 68%, Ardabil 9%, Shirvan 26%
• Persia 1503 - 103% - Aq Qoyunlu 68%, Ardabil 9%, Shirvan 26%
• Persia 1504 - 193% - Aq Qoyunlu 185%, Mushasha 8%
• Persia 1505 - 193% - Aq Qoyunlu 185%, Mushasha 8%
• Persia 1506 - 193% - Aq Qoyunlu 185%, Mushasha 8%
• Persia 1507 - 155% - Aq Qoyunlu 155%
• Persia 1508 - 189% - Aq Qoyunlu 155%, Mushasha 34%
• Persia 1509 - 189% - Aq Qoyunlu 155%, Mushasha 34%
• Persia 1510 - 137% - Bukhara 103%, Mushasha 34%
• Persia 1511 - 103% - Bukhara 103%
• Persia 1512 - 103% - Bukhara 103%
• Persia 1612 - 116% - Ottomans 116%
• Persia 1613 - 116% - Ottomans 116%
• Persia 1614 - 116% - Ottomans 116%
• Persia 1739 - 100% - Bukhara 24%, Mughals 76%
• Persia 1741 - 123% - Khiva 9%, Mughals 76%, Oman 38%
• Poland 1807 - 166% - Austria 56%, Prussia 110%
• Poland 1808 - 166% - Austria 56%, Prussia 110%
• Poland 1809 - 166% - Austria 56%, Prussia 110%
• Prussia 1701 - 188% - Brandenburg 188%
• Prussia 1702 - 188% - Brandenburg 188%
• Prussia 1703 - 188% - Brandenburg 188%
• Prussia 1795 - 111% - Commonwealth 111%
• Prussia 1813 - 133% - Berg 23%, France 7%, Westphalia 103%
• Prussia 1814 - 259% - Berg 23%, Danzig 16%, France 51%, Hanover 7%, Poland 59%, Westphalia 103%
• Prussia 1815 - 380% - Berg 35%, Danzig 16%, Denmark 29%, France 78%, Hanover 16%, Poland 59%, Saxony 44%, Westphalia 103%
• Prussia 1816 - 247% - Berg 12%, Danzig 16%, Denmark 29%, France 71%, Hanover 16%, Poland 59%, Saxony 44%
• Prussia 1817 - 121% - Berg 12%, Denmark 29%, France 27%, Hanover 9%, Saxony 44%
• Qara Qoyunlu 1451 - 150% - Ajam 150%
• Qara Qoyunlu 1452 - 139% - Ajam 139%
• Qara Qoyunlu 1453 - 144% - Ajam 139%, Khorasan 5%
• Qing 1636 - 413% - Manchu 413%
• Qing 1637 - 413% - Manchu 413%
• Qing 1638 - 413% - Manchu 413%
• Qing 1644 - 202% - Ming 20%, Shun 182%
• Qing 1645 - 613% - Ming 246%, Shun 348%, Xi 19%
• Qing 1646 - 753% - Ming 365%, Shun 348%, Xi 40%
• Qing 1647 - 697% - Ming 491%, Shun 166%, Xi 40%
• Qing 1648 - 286% - Ming 265%, Xi 21%
• Qing 1649 - 206% - Ming 206%
• Qing 1650 - 169% - Ming 169%
• Qing 1651 - 198% - Ming 198%
• Qing 1652 - 138% - Ming 138%
• Qing 1659 - 101% - Ming 41%, Xi 60%
• Qing 1660 - 101% - Ming 41%, Xi 60%
• Qing 1681 - 250% - Zhou 250%
• Qing 1682 - 250% - Zhou 250%
• Qing 1683 - 260% - Ming 10%, Zhou 250%
• Qing 1697 - 117% - Dzungar 117%
• Qing 1698 - 117% - Dzungar 117%
• Russia 1503 - 411% - Lithuania 14%, Muscovy 389%, Ryazan 8%
• Russia 1504 - 411% - Lithuania 14%, Muscovy 389%, Ryazan 8%
• Russia 1505 - 437% - Lithuania 14%, Muscovy 389%, Perm 26%, Ryazan 8%
• Russia 1552 - 138% - Kazan 132%, Nogai 6%
• Russia 1553 - 138% - Kazan 132%, Nogai 6%
• Russia 1554 - 138% - Kazan 132%, Nogai 6%
• Russia 1722 - 106% - Persia 34%, Sweden 72%
• Russia 1723 - 106% - Persia 34%, Sweden 72%
• Russia 1795 - 165% - Commonwealth 152%, Kurland 13%
• Russia 1796 - 103% - Commonwealth 90%, Kurland 13%
• Russia 1797 - 103% - Commonwealth 90%, Kurland 13%
• Russia 1814 - 130% - Armenia 6%, Kharabakh 9%, Moldavia 17%, Ottomans 11%, Poland 87%
• Russia 1815 - 102% - Armenia 6%, Kharabakh 9%, Poland 87%
• Sardinia-Piedmont 1720 - 105% - Austria 21%, Sicily 84%
• Sardinia-Piedmont 1721 - 105% - Austria 21%, Sicily 84%
• Sardinia-Piedmont 1722 - 105% - Austria 21%, Sicily 84%
• Sardinia-Piedmont 1814 - 147% - France 147%
• Sardinia-Piedmont 1815 - 147% - France 147%
• Sardinia-Piedmont 1816 - 147% - France 147%
• Shun 1644 - 348% - Ming 348%
• Shun 1645 - 348% - Ming 348%
• Shun 1646 - 285% - Ming 285%
• Sirhind 1553 - 109% - Bengal 109%
• Sirhind 1554 - 109% - Bengal 109%
• Sirhind 1555 - 109% - Bengal 109%
• Spain 1516 - 839% - Aragon 323%, Castile 516%
• Spain 1517 - 839% - Aragon 323%, Castile 516%
• Spain 1518 - 839% - Aragon 323%, Castile 516%
• Spain 1519 - 256% - Austria 251%, Aztec 5%
• Spain 1520 - 283% - Austria 251%, Aztec 5%, Tlaxcala 27%
• Spain 1521 - 421% - Austria 251%, Aztec 108%, Butuan 6%, Huastec 3%, Otomi 3%, Tarascan 3%, Teotitlan 7%, Tlaxcala 27%, Tripoli 3%, Tzotzil 10%
• Spain 1522 - 186% - Aztec 103%, Butuan 6%, Huastec 3%, Otomi 3%, Tarascan 3%, Teotitlan 7%, Tlapanec 21%, Tlaxcala 27%, Tripoli 3%, Tzotzil 10%
• Spain 1523 - 200% - Aztec 103%, Butuan 6%, Colima 27%, Huastec 3%, Otomi 3%, Tarascan 17%, Teotitlan 7%, Tlapanec 21%, Tripoli 3%, Tzotzil 10%
• Spain 1524 - 118% - Aztec 10%, Chorti 3%, Colima 27%, Kaqchikel 5%, Kiche 21%, Mixtec 12%, Tarascan 14%, Tlapanec 21%, Zapotec 5%
• Spain 1525 - 110% - Aztec 10%, Chorti 6%, Colima 27%, Kaqchikel 12%, Kiche 21%, Mixtec 12%, Tairona 3%, Tarascan 14%, Zapotec 5%
• Spain 1532 - 118% - Carib 3%, Guamar 6%, Inca 21%, Siena 20%, Tarascan 45%, Tonala 6%, Xalisco 17%
• Spain 1533 - 312% - Carib 3%, Guamar 6%, Inca 248%, Montferrat 12%, Siena 20%, Tonala 6%, Xalisco 17%
• Spain 1534 - 289% - Guamar 6%, Inca 248%, Montferrat 12%, Tonala 6%, Xalisco 17%
• Spain 1535 - 330% - Charrua 7%, Inca 240%, Milan 71%, Montferrat 12%
• Spain 1537 - 120% - Can Pech 7%, Charrua 7%, Inca 35%, Milan 71%
• Taungu 1563 - 157% - Shan 157%
• Taungu 1564 - 177% - Ayutthaya 20%, Shan 157%
• Taungu 1565 - 177% - Ayutthaya 20%, Shan 157%
• Timurids 1448 - 127% - Transoxiana 127%
• Timurids 1449 - 127% - Transoxiana 127%
• Timurids 1450 - 127% - Transoxiana 127%
• Timurids 1458 - 137% - Khorasan 132%, Qara Qoyunlu 5%
• Timurids 1459 - 137% - Khorasan 132%, Qara Qoyunlu 5%
• Timurids 1460 - 113% - Khorasan 108%, Qara Qoyunlu 5%
• Tokugawa 1600 - 201% - Chosokabe 7%, Hosokawa 7%, Ikeda 7%, Mori 48%, Oda 132%
• Tokugawa 1601 - 201% - Chosokabe 7%, Hosokawa 7%, Ikeda 7%, Mori 48%, Oda 132%
• Tokugawa 1602 - 207% - Chosokabe 7%, Hosokawa 7%, Ikeda 7%, Mori 48%, Oda 132%, Satake 6%
• Transoxiana 1409 - 127% - Timurids 127%
• Transoxiana 1410 - 127% - Timurids 127%
• Transoxiana 1411 - 127% - Timurids 127%
• United States 1776 - 282% - Great Britain 282%
• United States 1777 - 282% - Great Britain 282%
• United States 1778 - 290% - Great Britain 290%
• Venezuela 1811 - 116% - Spain 116%
• Venezuela 1812 - 116% - Spain 116%
• Venezuela 1813 - 116% - Spain 116%
• Westphalia 1807 - 256% - Hanover 29%, Hesse 43%, Nassau 9%, Prussia 175%
• Westphalia 1808 - 256% - Hanover 29%, Hesse 43%, Nassau 9%, Prussia 175%
• Westphalia 1809 - 256% - Hanover 29%, Hesse 43%, Nassau 9%, Prussia 175%
• Xi 1644 - 106% - Ming 106%
• Xi 1645 - 106% - Ming 106%
• Zhou 1662 - 257% - Ming 46%, Qing 205%, Xi 6%
• Zhou 1663 - 257% - Ming 46%, Qing 205%, Xi 6%
• Zhou 1664 - 238% - Ming 46%, Qing 186%, Xi 6%

An obvious followup to this question would be how far Aggressive Expansion went, and how many countries would get coalitioned, but that's a much more complicated calculation, even to approximate.