Frequencies for first 10,000 rows of pct012f085 variable in sf12010860us25 dataset :

   82 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,351       93.51       93.51
          1 |        389        3.89       97.40
          2 |        106        1.06       98.46
          3 |         45        0.45       98.91
          4 |         30        0.30       99.21
          5 |         22        0.22       99.43
          6 |         19        0.19       99.62
          7 |          9        0.09       99.71
          8 |          8        0.08       99.79
          9 |          7        0.07       99.86
         10 |          3        0.03       99.89
         11 |          6        0.06       99.95
         12 |          3        0.03       99.98
         13 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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