국가별 평균 가족 소득  (Gallup)

Worldwide, Median Household Income About $10,000

WASHINGTON, D.C. -- The median annual household income worldwide is $9,733, and the median per-capita household income is $2,920, according to new Gallup metrics. Vast differences between more economically developed countries and those with developing or transitional economies illustrate how dramatically spending power varies worldwide. Median per-capita incomes in the top 10 wealthiest populations are more than 50 times those in the 10 poorest populations, all of which are in sub-Saharan Africa.
http://www.gallup.com/poll/166211/worldwide-median-household-income-000.aspx