Frequencies for first 10,000 rows of pct012m060 variable in sf12000860us28 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,904       99.04       99.04
          1 |         88        0.88       99.92
          2 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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