Frequencies for first 10,000 rows of pct012e041 variable in sf12010860us24 dataset :

   38 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,706       97.06       97.06
          1 |        255        2.55       99.61
          2 |         28        0.28       99.89
          3 |          9        0.09       99.98
          4 |          1        0.01       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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