condition	mean	min	max
4 h after light	6.138015	5.66122	6.61481
8 h after light	9.879775	9.79997	9.95958
12 h after light	13.662749999999999	13.0611	14.2644
4 h after dark	11.387333333333334	10.9671	12.2219
8 h after dark	9.974253333333333	9.50988	10.4268
12 h after dark	6.87821	6.59776	7.3719