Frequencies for first 10,000 rows of pct012e162 variable in sf12000860us20 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,856       98.56       98.56
          1 |        138        1.38       99.94
          2 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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