Frequencies for first 10,000 rows of pct012g070 variable in sf12010860us26 dataset :

   67 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,987       79.87       79.87
          1 |      1,265       12.65       92.52
          2 |        404        4.04       96.56
          3 |        123        1.23       97.79
          4 |         70        0.70       98.49
          5 |         47        0.47       98.96
          6 |         30        0.30       99.26
          7 |         19        0.19       99.45
          8 |         12        0.12       99.57
          9 |          6        0.06       99.63
         10 |         10        0.10       99.73
         11 |          7        0.07       99.80
         12 |          3        0.03       99.83
         13 |          4        0.04       99.87
         14 |          2        0.02       99.89
         15 |          3        0.03       99.92
         16 |          4        0.04       99.96
         17 |          1        0.01       99.97
         19 |          1        0.01       99.98
         21 |          1        0.01       99.99
         30 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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