Frequencies for first 10,000 rows of pct012e033 variable in sf12010860us24 dataset :

   30 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,565       95.65       95.65
          1 |        353        3.53       99.18
          2 |         54        0.54       99.72
          3 |         20        0.20       99.92
          4 |          6        0.06       99.98
          5 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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