Frequencies for first 10,000 rows of prmaidr variable in namcs2005 dataset :

 percent of |
    patient |
       care |
    revenue |
       from |
   medicaid |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,173       71.73       71.73
          2 |      1,438       14.38       86.11
          3 |        356        3.56       89.67
          4 |        310        3.10       92.77
          9 |        723        7.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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