Frequencies for first 10,000 rows of pct012m015 variable in sf12000860us28 dataset :

   12 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,823       98.23       98.23
          1 |        165        1.65       99.88
          2 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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