Frequencies for first 10,000 rows of pct012g073 variable in sf12010860us26 dataset :

   70 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,364       83.64       83.64
          1 |      1,044       10.44       94.08
          2 |        321        3.21       97.29
          3 |        106        1.06       98.35
          4 |         54        0.54       98.89
          5 |         28        0.28       99.17
          6 |         28        0.28       99.45
          7 |         18        0.18       99.63
          8 |          7        0.07       99.70
          9 |         10        0.10       99.80
         10 |          6        0.06       99.86
         11 |          7        0.07       99.93
         12 |          2        0.02       99.95
         13 |          3        0.03       99.98
         15 |          1        0.01       99.99
         18 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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