Frequencies for first 10,000 rows of pct013c021 variable in sf12010860us35 dataset :

   67 to 69 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,223       82.23       82.23
          1 |      1,213       12.13       94.36
          2 |        304        3.04       97.40
          3 |        125        1.25       98.65
          4 |         46        0.46       99.11
          5 |         27        0.27       99.38
          6 |         17        0.17       99.55
          7 |         12        0.12       99.67
          8 |          5        0.05       99.72
          9 |          3        0.03       99.75
         10 |          6        0.06       99.81
         11 |          3        0.03       99.84
         12 |          2        0.02       99.86
         15 |          1        0.01       99.87
         16 |          1        0.01       99.88
         19 |          1        0.01       99.89
         22 |          1        0.01       99.90
         24 |          1        0.01       99.91
         25 |          1        0.01       99.92
         30 |          1        0.01       99.93
         31 |          1        0.01       99.94
         40 |          1        0.01       99.95
         50 |          1        0.01       99.96
         57 |          1        0.01       99.97
         71 |          1        0.01       99.98
         96 |          1        0.01       99.99
        125 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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