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

                       Affiliation Code |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                      0 |         42        0.42        0.42
Central  This code is used if the organ |         17        0.17        0.59
Intermediate  This code is used if the  |          6        0.06        0.65
Independent  This code is used if the o |      7,300       73.00       73.65
Central  This code is used if the organ |         12        0.12       73.77
Central  This code is used if the organ |          3        0.03       73.80
Subordinate  This code is used if the o |      2,620       26.20      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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