Frequencies for first 10,000 rows of paytyper variable in nhamcsopd2010 dataset :

  recoded type of payment (based |
                   on hierarchy) |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
all sources of payment are blank |         70        0.70        0.70
                         unknown |        284        2.84        3.54
               private insurance |      3,288       32.88       36.42
                        medicare |      2,435       24.35       60.77
                        medicaid |      2,829       28.29       89.06
           worker's compensation |         94        0.94       90.00
                        self-pay |        491        4.91       94.91
                       no charge |        276        2.76       97.67
                           other |        233        2.33      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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