Frequencies for first 10,000 rows of pct012f189 variable in sf12000860us21 dataset :

   82 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,428       94.28       94.28
          1 |        306        3.06       97.34
          2 |        105        1.05       98.39
          3 |         39        0.39       98.78
          4 |         42        0.42       99.20
          5 |         16        0.16       99.36
          6 |         10        0.10       99.46
          7 |          9        0.09       99.55
          8 |          8        0.08       99.63
          9 |          7        0.07       99.70
         10 |          2        0.02       99.72
         11 |          5        0.05       99.77
         12 |          7        0.07       99.84
         13 |          2        0.02       99.86
         14 |          3        0.03       99.89
         15 |          1        0.01       99.90
         16 |          4        0.04       99.94
         17 |          1        0.01       99.95
         18 |          2        0.02       99.97
         20 |          1        0.01       99.98
         24 |          1        0.01       99.99
         32 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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