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

 primary expected |
source of payment |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |        111        1.11        1.11
Private insurance |      5,673       56.73       57.84
         Medicare |      2,535       25.35       83.19
         Medicaid |        817        8.17       91.36
                4 |        108        1.08       92.44
         Self-pay |        404        4.04       96.48
        No charge |         56        0.56       97.04
            Other |        188        1.88       98.92
          Unknown |        108        1.08      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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