Frequencies for first 10,000 rows of raceim variable in nhamcsopd2007 dataset :

            patient race (imputed) |      Freq.     Percent        Cum.
-----------------------------------+-----------------------------------
                        white only |      6,446       64.46       64.46
       black/african american only |      2,952       29.52       93.98
                        asian only |        326        3.26       97.24
  native hawaiian/oth pac isl only |         29        0.29       97.53
american indian/alaska native only |         30        0.30       97.83
       more than one race reported |        217        2.17      100.00
-----------------------------------+-----------------------------------
                             Total |     10,000      100.00

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