Frequencies for first 10,000 rows of pct012j100 variable in sf12010860us29 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,672       96.72       96.72
          1 |        253        2.53       99.25
          2 |         49        0.49       99.74
          3 |         20        0.20       99.94
          4 |          3        0.03       99.97
          5 |          2        0.02       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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