Frequencies for first 10,000 rows of pct012j200 variable in sf12010860us29 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,305       83.05       83.05
          1 |        841        8.41       91.46
          2 |        333        3.33       94.79
          3 |        160        1.60       96.39
          4 |         90        0.90       97.29
          5 |         61        0.61       97.90
          6 |         41        0.41       98.31
          7 |         30        0.30       98.61
          8 |         25        0.25       98.86
          9 |         20        0.20       99.06
         10 |         13        0.13       99.19
         11 |         12        0.12       99.31
         12 |         13        0.13       99.44
         13 |          6        0.06       99.50
         14 |          7        0.07       99.57
         15 |          7        0.07       99.64
         16 |          7        0.07       99.71
         17 |          8        0.08       99.79
         18 |          2        0.02       99.81
         19 |          2        0.02       99.83
         20 |          5        0.05       99.88
         21 |          1        0.01       99.89
         22 |          1        0.01       99.90
         23 |          1        0.01       99.91
         24 |          2        0.02       99.93
         25 |          1        0.01       99.94
         28 |          1        0.01       99.95
         29 |          1        0.01       99.96
         32 |          2        0.02       99.98
         36 |          1        0.01       99.99
         39 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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