Frequencies for first 10,000 rows of pct013c048 variable in sf12010860us35 dataset :

   80 to 84 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,780       87.80       87.80
          1 |        858        8.58       96.38
          2 |        195        1.95       98.33
          3 |         75        0.75       99.08
          4 |         33        0.33       99.41
          5 |         16        0.16       99.57
          6 |         13        0.13       99.70
          7 |          1        0.01       99.71
          8 |          8        0.08       99.79
          9 |          3        0.03       99.82
         10 |          4        0.04       99.86
         11 |          2        0.02       99.88
         12 |          1        0.01       99.89
         17 |          2        0.02       99.91
         20 |          1        0.01       99.92
         22 |          2        0.02       99.94
         27 |          1        0.01       99.95
         28 |          1        0.01       99.96
         29 |          1        0.01       99.97
         51 |          1        0.01       99.98
         59 |          1        0.01       99.99
         97 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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