Frequencies for affiliation variable in eobmfpr dataset :

                       Affiliation Code |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
Central  This code is used if the organ |          3        0.19        0.19
Intermediate  This code is used if the  |          1        0.06        0.26
Independent  This code is used if the o |      1,170       74.86       75.11
Central  This code is used if the organ |          1        0.06       75.18
Subordinate  This code is used if the o |        388       24.82      100.00
----------------------------------------+-----------------------------------
                                  Total |      1,563      100.00

by Jean Roth , jroth@nber.org , 15 Apr 2019