Frequencies for first 10,000 rows of pct012n189 variable in sf12010860us33 dataset :

   82 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,878       98.78       98.78
          1 |         98        0.98       99.76
          2 |         15        0.15       99.91
          3 |          3        0.03       99.94
          4 |          2        0.02       99.96
          5 |          2        0.02       99.98
          8 |          1        0.01       99.99
         12 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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