Frequencies for first 10,000 rows of pct012n190 variable in sf12010860us33 dataset :

   83 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,881       98.81       98.81
          1 |        100        1.00       99.81
          2 |         11        0.11       99.92
          3 |          3        0.03       99.95
          4 |          1        0.01       99.96
          5 |          1        0.01       99.97
          6 |          1        0.01       99.98
          8 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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