很少，最多的年齡段60-69歲也才18.2萬，所以，美國絕大部分退休人的日子其實不富裕。

Average 401(k) Plan Balances by Age

Age	Average 401(k) Account Balance
20-29	$10,500
30-39	$38,400
40-49	$93,400
50-59	$160,000
60-69	$182,100
70-79	$171,400