Frequencies for first 10,000 rows of pct012e035 variable in sf12000860us20 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,702       97.02       97.02
          1 |        270        2.70       99.72
          2 |         20        0.20       99.92
          3 |          5        0.05       99.97
          4 |          1        0.01       99.98
          5 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017