Frequencies for first 10,000 rows of race variable in namcs2001 dataset :

                      patient race |      Freq.     Percent        Cum.
-----------------------------------+-----------------------------------
                        White Only |      8,866       88.66       88.66
       Black/African American only |        804        8.04       96.70
                        Asian only |        264        2.64       99.34
  Native Hawaiian/Oth Pac Isl only |         19        0.19       99.53
American Indian/Alaska Native only |         24        0.24       99.77
       More than one race reported |         23        0.23      100.00
-----------------------------------+-----------------------------------
                             Total |     10,000      100.00

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