Frequencies for first 10,000 rows of pct012e131 variable in sf12010860us24 dataset :

   24 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,635       96.35       96.35
          1 |        293        2.93       99.28
          2 |         55        0.55       99.83
          3 |         13        0.13       99.96
          4 |          3        0.03       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017