Frequencies for first 10,000 rows of pct012n084 variable in sf12010860us33 dataset :

   81 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,911       99.11       99.11
          1 |         69        0.69       99.80
          2 |          6        0.06       99.86
          3 |          8        0.08       99.94
          4 |          2        0.02       99.96
          5 |          1        0.01       99.97
          6 |          1        0.01       99.98
          7 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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