They did owe 10 trillion then obama, which you failed to mention,  doubled it to 20.  Sweden also has a huge debt. You just don't take population into account. They have a population 30+ times smaller than the USA.  Next why do I care which country is the happiest. It means nothing. Why not argue my point that Sweden succeeded more under capitalism in the 20th century economically than it does now under socialism. Obviously because you were oblivious to that simple fact and can't argue it.