Frequencies for first 10,000 rows of nmedcare variable in namcs2011 dataset :

       Type of |
       payment |
 accepted from |
 new patients: |
      Medicare |      Freq.     Percent        Cum.
---------------+-----------------------------------
         Blank |        156        1.56        1.56
       Unknown |        143        1.43        2.99
Not applicable |        583        5.83        8.82
           Yes |      6,906       69.06       77.88
            No |      2,212       22.12      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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