Frequencies for first 10,000 rows of PCT012B206 variable in sf12000860us17 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,389       93.89       93.89
          1 |        409        4.09       97.98
          2 |        121        1.21       99.19
          3 |         35        0.35       99.54
          4 |         24        0.24       99.78
          5 |         10        0.10       99.88
          6 |          6        0.06       99.94
          7 |          2        0.02       99.96
          8 |          1        0.01       99.97
          9 |          2        0.02       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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