Frequencies for first 10,000 rows of prmaidr variable in namcs2003 dataset :

 percent of |
    patient |
       care |
    revenue |
       from |
   medicaid |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,002       80.02       80.02
          2 |        788        7.88       87.90
          3 |        233        2.33       90.23
          4 |         84        0.84       91.07
          9 |        893        8.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016