Frequencies for first 10,000 rows of paytyper variable in namcs2012 dataset :

   Type of payment (recoded from |
          multiple sources using |
                      hierarchy) |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
All sources of payment are blank |        128        1.28        1.28
                         Unknown |        248        2.48        3.76
               Private insurance |      4,933       49.33       53.09
                        Medicare |      2,453       24.53       77.62
                Medicaid or CHIP |      1,040       10.40       88.02
           Worker's compensation |        179        1.79       89.81
                        Self-pay |        753        7.53       97.34
               No charge/Charity |         22        0.22       97.56
                           Other |        244        2.44      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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