Frequencies for first 10,000 rows of race variable in nhamcsopd2000 dataset :

                        patient race |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               White |      6,711       67.11       67.11
              Black/African American |      2,895       28.95       96.06
Asian or Native Hawaiian/Oth Pac Isl |        357        3.57       99.63
       American Indian/Alaska Native |         19        0.19       99.82
         More than one race reported |         18        0.18      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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