Frequencies for first 10,000 rows of pct012g195 variable in sf12000860us22 dataset :

   88 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,393       93.93       93.93
          1 |        472        4.72       98.65
          2 |         76        0.76       99.41
          3 |         35        0.35       99.76
          4 |         12        0.12       99.88
          5 |          7        0.07       99.95
          6 |          1        0.01       99.96
          9 |          2        0.02       99.98
         10 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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