Frequencies for first 10,000 rows of pct012d102 variable in sf12010860us23 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,958       99.58       99.58
          1 |         38        0.38       99.96
          2 |          2        0.02       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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