Frequencies for first 10,000 rows of whocomp variable in nhamcsed2010 dataset :

Who completed the Patient Record Forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
census field rep - abstract after rep p |      6,873       68.73       68.73
census field rep - abstract during rep  |         47        0.47       69.20
                         hospital staff |      2,468       24.68       93.88
            multiple categories checked |        612        6.12      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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