Frequencies for first 10,000 rows of pct012g077 variable in sf12000860us22 dataset :

   74 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,815       88.15       88.15
          1 |        805        8.05       96.20
          2 |        176        1.76       97.96
          3 |         86        0.86       98.82
          4 |         44        0.44       99.26
          5 |         22        0.22       99.48
          6 |         19        0.19       99.67
          7 |         16        0.16       99.83
          8 |          5        0.05       99.88
          9 |          4        0.04       99.92
         10 |          3        0.03       99.95
         11 |          4        0.04       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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