Frequencies for first 10,000 rows of pct012n088 variable in sf12000860us29 dataset :

   85 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,946       99.46       99.46
          1 |         43        0.43       99.89
          2 |          9        0.09       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017