Frequencies for first 10,000 rows of prov0455 variable in posclia2009 dataset :

eligibility |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,767       77.67       77.67
          1 |      2,233       22.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016