Frequencies for first 10,000 rows of pct012g071 variable in sf12000860us22 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,578       85.78       85.78
          1 |        897        8.97       94.75
          2 |        257        2.57       97.32
          3 |         99        0.99       98.31
          4 |         57        0.57       98.88
          5 |         23        0.23       99.11
          6 |         27        0.27       99.38
          7 |         18        0.18       99.56
          8 |         10        0.10       99.66
          9 |         13        0.13       99.79
         10 |          9        0.09       99.88
         11 |          3        0.03       99.91
         13 |          5        0.05       99.96
         14 |          1        0.01       99.97
         15 |          1        0.01       99.98
         16 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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