Frequencies for first 10,000 rows of pct012k172 variable in sf12010860us30 dataset :

   65 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,210       92.10       92.10
          1 |        644        6.44       98.54
          2 |         95        0.95       99.49
          3 |         21        0.21       99.70
          4 |          6        0.06       99.76
          5 |          4        0.04       99.80
          6 |          3        0.03       99.83
          7 |          3        0.03       99.86
          8 |          3        0.03       99.89
          9 |          2        0.02       99.91
         14 |          2        0.02       99.93
         17 |          1        0.01       99.94
         20 |          1        0.01       99.95
         26 |          1        0.01       99.96
         28 |          1        0.01       99.97
         38 |          1        0.01       99.98
         44 |          1        0.01       99.99
         46 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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