Frequencies for first 10,000 rows of pct012c172 variable in sf12000860us18 dataset :

   65 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,404       94.04       94.04
          1 |        474        4.74       98.78
          2 |         79        0.79       99.57
          3 |         17        0.17       99.74
          4 |         10        0.10       99.84
          5 |          5        0.05       99.89
          6 |          2        0.02       99.91
          8 |          2        0.02       99.93
         12 |          1        0.01       99.94
         15 |          1        0.01       99.95
         18 |          1        0.01       99.96
         20 |          1        0.01       99.97
         21 |          1        0.01       99.98
         24 |          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