Frequencies for first 10,000 rows of pct013c024 variable in sf12010860us35 dataset :

   80 to 84 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,105       91.05       91.05
          1 |        681        6.81       97.86
          2 |        145        1.45       99.31
          3 |         37        0.37       99.68
          4 |         12        0.12       99.80
          5 |          5        0.05       99.85
          6 |          2        0.02       99.87
          7 |          4        0.04       99.91
         11 |          1        0.01       99.92
         12 |          1        0.01       99.93
         15 |          1        0.01       99.94
         17 |          1        0.01       99.95
         21 |          2        0.02       99.97
         29 |          1        0.01       99.98
         34 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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