AMB (N=81512)	EMER (N=37783)	Overall (N=119295)
as.factor(management)
1	8217 (10.1%)	2706 (7.2%)	10923 (9.2%)
2	8945 (11.0%)	2236 (5.9%)	11181 (9.4%)
3	64350 (78.9%)	32841 (86.9%)	97191 (81.5%)