Frequencies for first 10,000 rows of prov0455 variable in posclia2006 dataset :

eligibility |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,820       78.20       78.20
          1 |      2,180       21.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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