Frequencies for first 10,000 rows of pct012f076 variable in sf12010860us25 dataset :

   73 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,924       89.24       89.24
          1 |        584        5.84       95.08
          2 |        147        1.47       96.55
          3 |         80        0.80       97.35
          4 |         56        0.56       97.91
          5 |         42        0.42       98.33
          6 |         38        0.38       98.71
          7 |         17        0.17       98.88
          8 |         17        0.17       99.05
          9 |         16        0.16       99.21
         10 |         13        0.13       99.34
         11 |          5        0.05       99.39
         12 |         10        0.10       99.49
         13 |          4        0.04       99.53
         14 |          6        0.06       99.59
         15 |          2        0.02       99.61
         16 |          6        0.06       99.67
         17 |          3        0.03       99.70
         18 |          5        0.05       99.75
         19 |          3        0.03       99.78
         20 |          6        0.06       99.84
         21 |          1        0.01       99.85
         23 |          3        0.03       99.88
         26 |          2        0.02       99.90
         28 |          2        0.02       99.92
         29 |          1        0.01       99.93
         30 |          2        0.02       99.95
         32 |          2        0.02       99.97
         40 |          1        0.01       99.98
         42 |          1        0.01       99.99
         46 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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