Frequencies for first 10,000 rows of pct012j096 variable in sf12010860us29 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,200       92.00       92.00
          1 |        523        5.23       97.23
          2 |        140        1.40       98.63
          3 |         62        0.62       99.25
          4 |         30        0.30       99.55
          5 |         16        0.16       99.71
          6 |          8        0.08       99.79
          7 |         10        0.10       99.89
          8 |          3        0.03       99.92
          9 |          3        0.03       99.95
         10 |          2        0.02       99.97
         11 |          1        0.01       99.98
         12 |          1        0.01       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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