Frequencies for first 10,000 rows of ethun variable in nhamcsed2008 dataset :

   patient ethnicity - |
             unimputed |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 blank |      2,076       20.76       20.76
    hispanic or latino |      1,034       10.34       31.10
not hispanic or latino |      6,890       68.90      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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