Frequencies for first 10,000 rows of prmaidr variable in namcs2004 dataset :

 percent of |
    patient |
       care |
    revenue |
       from |
   medicaid |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,294       82.94       82.94
          2 |        781        7.81       90.75
          3 |        250        2.50       93.25
          4 |        114        1.14       94.39
          9 |        561        5.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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