Frequencies for first 10,000 rows of raceun variable in namcs2014 dataset :

          Patient race - unimputed |      Freq.     Percent        Cum.
-----------------------------------+-----------------------------------
                             Blank |      2,563       25.63       25.63
                        White Only |      6,352       63.52       89.15
       Black/African American Only |        577        5.77       94.92
                        Asian Only |        446        4.46       99.38
  Native Hawaiian/Oth Pac Isl Only |         21        0.21       99.59
American Indian/Alaska Native Only |         18        0.18       99.77
       More than one race reported |         23        0.23      100.00
-----------------------------------+-----------------------------------
                             Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017