Frequencies for first 10,000 rows of pct012m053 variable in sf12000860us28 dataset :

   50 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,869       98.69       98.69
          1 |        121        1.21       99.90
          2 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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