Frequencies for first 10,000 rows of paytype variable in namcs2001 dataset :

 primary expected |
source of payment |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |        243        2.43        2.43
Private insurance |      5,556       55.56       57.99
         Medicare |      2,367       23.67       81.66
         Medicaid |        663        6.63       88.29
                4 |        203        2.03       90.32
         Self-pay |        529        5.29       95.61
        No charge |         51        0.51       96.12
            Other |        179        1.79       97.91
          Unknown |        209        2.09      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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