A little arithmetic:
6.4T USD / 128M US households = 50K USD/household
50K USD/household/ 9 years = 5.5K USD/household/yr
6.4T USD / 128M US households = 50K USD/household
50K USD/household/ 9 years = 5.5K USD/household/yr
[1] - https://en.wikipedia.org/wiki/Household_income_in_the_United...