Frequencies for first 10,000 rows of pct012c192 variable in sf12010860us22 dataset :

   85 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,714       97.14       97.14
          1 |        239        2.39       99.53
          2 |         34        0.34       99.87
          3 |          5        0.05       99.92
          4 |          2        0.02       99.94
          6 |          2        0.02       99.96
          7 |          2        0.02       99.98
          9 |          1        0.01       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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