Frequencies for first 10,000 rows of whocomp variable in nhamcsed2003 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                         hospital staff |      4,827       48.27       48.27
census field rep - abstract during rep  |        297        2.97       51.24
census field rep - abstract after rep p |      4,115       41.15       92.39
            multiple categories checked |        761        7.61      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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