Frequencies for first 10,000 rows of pct012m028 variable in sf12010860us32 dataset :

   25 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,730       97.30       97.30
          1 |        235        2.35       99.65
          2 |         24        0.24       99.89
          3 |          6        0.06       99.95
          4 |          3        0.03       99.98
          6 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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