Frequencies for first 10,000 rows of whocomp variable in nhamcsed2004 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                         hospital staff |      4,547       45.47       45.47
census field rep - abstract during rep  |         65        0.65       46.12
census field rep - abstract after rep p |      3,489       34.89       81.01
                                  other |        106        1.06       82.07
            multiple categories checked |      1,333       13.33       95.40
                                unknown |        460        4.60      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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