Frequencies for first 10,000 rows of pct012o171 variable in sf12000860us30 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,509       85.09       85.09
          1 |        977        9.77       94.86
          2 |        244        2.44       97.30
          3 |        112        1.12       98.42
          4 |         57        0.57       98.99
          5 |         27        0.27       99.26
          6 |         24        0.24       99.50
          7 |         10        0.10       99.60
          8 |         13        0.13       99.73
          9 |          4        0.04       99.77
         10 |          7        0.07       99.84
         11 |          6        0.06       99.90
         12 |          5        0.05       99.95
         13 |          1        0.01       99.96
         14 |          1        0.01       99.97
         16 |          2        0.02       99.99
         25 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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