Frequencies for first 10,000 rows of pct012e138 variable in sf12010860us24 dataset :

   31 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,656       96.56       96.56
          1 |        292        2.92       99.48
          2 |         36        0.36       99.84
          3 |         13        0.13       99.97
          4 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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