Frequencies for first 10,000 rows of prmaidr variable in namcs2015 dataset :

 Percent of |
    patient |
       care |
    revenue |
       from |
   Medicaid |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      1,531       15.31       15.31
          1 |      7,098       70.98       86.29
          2 |        807        8.07       94.36
          3 |        270        2.70       97.06
          4 |        294        2.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017