Frequencies for first 10,000 rows of whocomp variable in nhamcsed2005 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                         hospital staff |      5,276       52.76       52.76
census field rep - abstract during rep  |        103        1.03       53.79
census field rep - abstract after rep p |      3,129       31.29       85.08
            multiple categories checked |        765        7.65       92.73
                                unknown |        727        7.27      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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