Frequencies for first 10,000 rows of whocomp variable in namcs2004 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                              Physician |      1,796       17.96       17.96
                           Office staff |      2,919       29.19       47.15
Census field rep (abstract from record) |      3,228       32.28       79.43
                                  Other |        237        2.37       81.80
            Multiple categories checked |      1,616       16.16       97.96
                                Unknown |        204        2.04      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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