Frequencies for first 10,000 rows of pct012e025 variable in sf12010860us24 dataset :

   22 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,594       95.94       95.94
          1 |        320        3.20       99.14
          2 |         56        0.56       99.70
          3 |         16        0.16       99.86
          4 |          9        0.09       99.95
          5 |          2        0.02       99.97
          6 |          2        0.02       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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