Frequencies for first 10,000 rows of pct012f190 variable in sf12010860us25 dataset :

   83 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,247       92.47       92.47
          1 |        400        4.00       96.47
          2 |        131        1.31       97.78
          3 |         66        0.66       98.44
          4 |         44        0.44       98.88
          5 |         23        0.23       99.11
          6 |         16        0.16       99.27
          7 |          6        0.06       99.33
          8 |         16        0.16       99.49
          9 |         14        0.14       99.63
         10 |          4        0.04       99.67
         11 |          4        0.04       99.71
         12 |          4        0.04       99.75
         13 |          3        0.03       99.78
         14 |          4        0.04       99.82
         15 |          5        0.05       99.87
         16 |          1        0.01       99.88
         17 |          2        0.02       99.90
         18 |          1        0.01       99.91
         19 |          2        0.02       99.93
         20 |          2        0.02       99.95
         23 |          1        0.01       99.96
         24 |          1        0.01       99.97
         25 |          1        0.01       99.98
         28 |          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