1. 我认识的所有白人: 太太退休前 : 家庭收入==US household average income, 现在 2.5 to 3 倍 US household average income
2. 我认识的所有亚裔: 太太退休前 : 家庭收入==US household average income, 现在 4 to 5 倍 US household average income
3. 我认识的墨西哥裔(only 2): 太太退休前 : 家庭收入==US housold average income, 现在 5 to 10 倍 US household average income
前提: 所有丈夫老板都是男人.
http://en.wikipedia.org/wiki/File:US_real_median_household_income_1967_-_2011.PNG