Frequencies for first 10,000 rows of pct012e019 variable in sf12010860us24 dataset :

   16 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,720       97.20       97.20
          1 |        247        2.47       99.67
          2 |         24        0.24       99.91
          3 |          6        0.06       99.97
          5 |          1        0.01       99.98
          6 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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