Frequencies for first 10,000 rows of pct012o095 variable in sf12000860us30 dataset :

   92 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,895       98.95       98.95
          1 |         97        0.97       99.92
          2 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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