Frequencies for first 10,000 rows of race variable in nhamcsopd2003 dataset :

                      patient race |      Freq.     Percent        Cum.
-----------------------------------+-----------------------------------
                        white only |      7,294       72.94       72.94
       black/african american only |      2,125       21.25       94.19
                        asian only |        382        3.82       98.01
  native hawaiian/oth pac isl only |         33        0.33       98.34
american indian/alaska native only |         79        0.79       99.13
       more than one race reported |         87        0.87      100.00
-----------------------------------+-----------------------------------
                             Total |     10,000      100.00

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