国名　世帯主収入の中央値　国民全体の収入の中央値

Luxembourg $52,493 $18,418
Norway $51,489 $19,308
Sweden $50,514 $18,632
Australia $46,555 $15,026
Denmark $44,360 $18,262
United States $43,585 $15,480
Canada $41,280 $15,181
South Korea $40,861 $11,950



Japan $33,822 $10,840

ソース
http://worldpopulationreview.com/countries/median-income-by-country/