Frequencies for first 10,000 rows of affiliation variable in eobmfmi dataset :

                       Affiliation Code |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                      0 |         14        0.14        0.14
Central  This code is used if the organ |         24        0.24        0.38
Intermediate  This code is used if the  |          5        0.05        0.43
Independent  This code is used if the o |      6,868       68.68       69.11
Central  This code is used if the organ |         22        0.22       69.33
Central  This code is used if the organ |          8        0.08       69.41
Subordinate  This code is used if the o |      3,059       30.59      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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