Frequencies for first 10,000 rows of pct012o093 variable in sf12010860us34 dataset :

   90 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,833       98.33       98.33
          1 |        155        1.55       99.88
          2 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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