Frequencies for first 10,000 rows of pct012e058 variable in sf12000860us20 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,878       98.78       98.78
          1 |        114        1.14       99.92
          2 |          6        0.06       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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