Frequencies for first 10,000 rows of pct012e125 variable in sf12010860us24 dataset :

   18 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,671       96.71       96.71
          1 |        288        2.88       99.59
          2 |         31        0.31       99.90
          3 |          5        0.05       99.95
          4 |          4        0.04       99.99
          7 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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