我們就各家自掃門前雪吧，看看美國社會各階層階級分析

Share of Net Worth Held by the Top 1%

Share of Net Worth Held by the 90th to 99th Wealth Percentiles

Share of Net Worth Held by the 50th to 90th Wealth Percentiles

Share of Net Worth Held by the Bottom 50%

我記得哪裏看見美國底部7%的家庭淨值是負的，一下子找不到了，你們大家努力找找

【找到了，在這裏】