Frequencies for first 10,000 rows of pct012f083 variable in sf12000860us21 dataset :

   80 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,494       94.94       94.94
          1 |        285        2.85       97.79
          2 |         83        0.83       98.62
          3 |         41        0.41       99.03
          4 |         39        0.39       99.42
          5 |         16        0.16       99.58
          6 |         15        0.15       99.73
          7 |          9        0.09       99.82
          8 |         10        0.10       99.92
          9 |          4        0.04       99.96
         10 |          1        0.01       99.97
         14 |          1        0.01       99.98
         15 |          1        0.01       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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