Frequencies for first 10,000 rows of pct012m136 variable in sf12010860us32 dataset :

   29 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,742       97.42       97.42
          1 |        214        2.14       99.56
          2 |         32        0.32       99.88
          3 |          7        0.07       99.95
          4 |          4        0.04       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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