Frequencies for first 10,000 rows of pct012i100 variable in sf12000860us24 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,385       83.85       83.85
          1 |      1,099       10.99       94.84
          2 |        330        3.30       98.14
          3 |        102        1.02       99.16
          4 |         42        0.42       99.58
          5 |         25        0.25       99.83
          6 |          8        0.08       99.91
          7 |          5        0.05       99.96
         10 |          2        0.02       99.98
         12 |          1        0.01       99.99
         14 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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