Frequencies for first 10,000 rows of prov0480 variable in pos2006 dataset :

    federal |
    program |
    support |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,296       92.96       92.96
          N |        625        6.25       99.21
          Y |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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