(Ranked by External debt as % of GDP)
1. Ireland - 1,382%
----External debt per capita: $566,756
2. United Kingdom - 413.3%
----External debt per capita: $146,953
3. Switzerland - 401.9%
----External debt per capita: $171,528
4. Netherlands - 376.3%
----External debt per capita: $152,380
5. Belgium - 335.9%
----External debt per capita: $127,197
6. Denmark - 310.4%
----External debt per capita: $113,826
7. Sweden - 282.2%
----External debt per capita: $110,479
8. Finland - 271.5%
----External debt per capita: $96,197
9. Austria - 261.1%
----External debt per capita: $105,616
10. Norway - 251%
------External debt per capita: $137,476
11. Hong Kong - 250.4%
------External debt per capita: $115,612
12. France - 250%
------External debt per capita: $83,781
13. Portugal - 223.6%
------External debt per capita: $51,572
14. Germany - 185.1%
------External debt per capita: $51,572
15. Greece - 182.2%
------External debt per capita: $53,984
16. Spain - 179.4%
------External debt per capita: $60,614
17. Italy - 146.6%
------External debt per capita: $44,760
18. Australia - 138.9%
------External debt per capita: $57,641
19. Hungary - 120.1%
------External debt per capita: $22,739
20. United States - 101.1%
------External debt per capita: $48,258
http://www.cnbc.com/id/30308959
1. Ireland - 1,382%
----External debt per capita: $566,756
2. United Kingdom - 413.3%
----External debt per capita: $146,953
3. Switzerland - 401.9%
----External debt per capita: $171,528
4. Netherlands - 376.3%
----External debt per capita: $152,380
5. Belgium - 335.9%
----External debt per capita: $127,197
6. Denmark - 310.4%
----External debt per capita: $113,826
7. Sweden - 282.2%
----External debt per capita: $110,479
8. Finland - 271.5%
----External debt per capita: $96,197
9. Austria - 261.1%
----External debt per capita: $105,616
10. Norway - 251%
------External debt per capita: $137,476
11. Hong Kong - 250.4%
------External debt per capita: $115,612
12. France - 250%
------External debt per capita: $83,781
13. Portugal - 223.6%
------External debt per capita: $51,572
14. Germany - 185.1%
------External debt per capita: $51,572
15. Greece - 182.2%
------External debt per capita: $53,984
16. Spain - 179.4%
------External debt per capita: $60,614
17. Italy - 146.6%
------External debt per capita: $44,760
18. Australia - 138.9%
------External debt per capita: $57,641
19. Hungary - 120.1%
------External debt per capita: $22,739
20. United States - 101.1%
------External debt per capita: $48,258
http://www.cnbc.com/id/30308959
Out of the world's 75 largest economies, the United States has the 20th largest as debt-to-GDP ratio, standing at 94.3%, with a gross external debt of $13.454 trillion and an annual GDP $14.26 trillion. In fact, out of the largest 75 economies, this number is just above the worldwide average of 90.8% Western-European and North American countries dominate the upper end of the spectrum, with Switzerland (422%) and the United Kingdom (408%) at the #2 and #3 spots, respectively, and Ireland representing the most drastic debt-to-GDP ratio. According to the most recent World Bank data, Ireland's number stands at a staggering 1,267%.
http://www.cnbc.com/id/33506526