Frequencies for first 10,000 rows of pct012m058 variable in sf12000860us28 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,904       99.04       99.04
          1 |         90        0.90       99.94
          2 |          4        0.04       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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