Frequencies for first 10,000 rows of pct012g187 variable in sf12000860us22 dataset :

   80 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,781       87.81       87.81
          1 |        826        8.26       96.07
          2 |        191        1.91       97.98
          3 |         81        0.81       98.79
          4 |         41        0.41       99.20
          5 |         31        0.31       99.51
          6 |         16        0.16       99.67
          7 |         11        0.11       99.78
          8 |         11        0.11       99.89
          9 |          5        0.05       99.94
         10 |          2        0.02       99.96
         11 |          1        0.01       99.97
         12 |          1        0.01       99.98
         13 |          1        0.01       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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