Frequencies for first 10,000 rows of pct012j102 variable in sf12000860us25 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,790       97.90       97.90
          1 |        176        1.76       99.66
          2 |         26        0.26       99.92
          3 |          6        0.06       99.98
          4 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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