Frequencies for first 10,000 rows of pct012k172 variable in sf12000860us26 dataset :

   65 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,495       94.95       94.95
          1 |        412        4.12       99.07
          2 |         59        0.59       99.66
          3 |         11        0.11       99.77
          4 |          8        0.08       99.85
          5 |          4        0.04       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
         19 |          1        0.01       99.97
         21 |          1        0.01       99.98
         24 |          1        0.01       99.99
         45 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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