Frequencies for first 10,000 rows of paytyper variable in nhamcsed2010 dataset :

 Recoded expected primary source |
                      of payment |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
all sources of payment are blank |        141        1.41        1.41
                         unknown |        479        4.79        6.20
               private insurance |      2,992       29.92       36.12
                        medicare |      1,775       17.75       53.87
                        medicaid |      2,705       27.05       80.92
           worker's compensation |        103        1.03       81.95
                        self-pay |      1,545       15.45       97.40
                       no charge |         37        0.37       97.77
                           other |        223        2.23      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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