Frequencies for first 10,000 rows of pct012k068 variable in sf12010860us30 dataset :

   65 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,244       92.44       92.44
          1 |        623        6.23       98.67
          2 |         82        0.82       99.49
          3 |         20        0.20       99.69
          4 |          6        0.06       99.75
          5 |          5        0.05       99.80
          6 |          7        0.07       99.87
          7 |          3        0.03       99.90
          8 |          2        0.02       99.92
         12 |          1        0.01       99.93
         17 |          1        0.01       99.94
         21 |          1        0.01       99.95
         22 |          1        0.01       99.96
         23 |          1        0.01       99.97
         36 |          1        0.01       99.98
         41 |          1        0.01       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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