Frequencies for affiliation variable in eobmf201612hi dataset :

                       Affiliation Code |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                      0 |         33        0.43        0.43
Central  This code is used if the organ |         18        0.23        0.66
Intermediate  This code is used if the  |          7        0.09        0.76
Independent  This code is used if the o |      6,145       80.02       80.78
Central  This code is used if the organ |         12        0.16       80.94
Central  This code is used if the organ |          9        0.12       81.05
Subordinate  This code is used if the o |      1,455       18.95      100.00
----------------------------------------+-----------------------------------
                                  Total |      7,679      100.00

by Jean Roth , jroth@nber.org , 20 Mar 2017