Frequencies for first 10,000 rows of pct012e146 variable in sf12010860us24 dataset :

   39 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,687       96.87       96.87
          1 |        278        2.78       99.65
          2 |         24        0.24       99.89
          3 |         10        0.10       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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