Frequencies for first 10,000 rows of whocomp variable in namcs2000 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                              Physician |      1,594       15.94       15.94
                           Office staff |      3,223       32.23       48.17
Census field rep (abstract from record) |      3,183       31.83       80.00
                                  Other |         25        0.25       80.25
            Multiple categories checked |      1,694       16.94       97.19
                                Unknown |        281        2.81      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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