Frequencies for first 10,000 rows of pct012m186 variable in sf12010860us32 dataset :

   79 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,972       99.72       99.72
          1 |         27        0.27       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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