Frequencies for first 10,000 rows of pct012g071 variable in sf12010860us26 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,189       81.89       81.89
          1 |      1,137       11.37       93.26
          2 |        334        3.34       96.60
          3 |        146        1.46       98.06
          4 |         66        0.66       98.72
          5 |         38        0.38       99.10
          6 |         27        0.27       99.37
          7 |         16        0.16       99.53
          8 |         12        0.12       99.65
          9 |          7        0.07       99.72
         10 |          8        0.08       99.80
         11 |          5        0.05       99.85
         12 |          4        0.04       99.89
         13 |          2        0.02       99.91
         14 |          2        0.02       99.93
         15 |          2        0.02       99.95
         16 |          2        0.02       99.97
         18 |          1        0.01       99.98
         19 |          1        0.01       99.99
         24 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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