@Kasz216: I never heard of this "external debt" before... It only includes debt to "nonresidents" according to wikipedia. Does that mean many mortgages or credit card debt to domestic institutions isn't included?
Here is a chart of consumer debt by country (unfortunately, 2004-2005 numbers):
http://curiouscapitalist.blogs.time.com/2008/02/07/americans_arent_the_only_peopl/
The results are somewhat surprising to me, although the metric seems a bit convoluted ("Household debt as a percentage of disposable income").
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