Frequencies for first 10,000 rows of pct012e062 variable in sf12000860us20 dataset :

   59 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,903       99.03       99.03
          1 |         93        0.93       99.96
          2 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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