condition	mean	min	max
4 h after light	8.011095	6.5051	9.51709
8 h after light	12.29155	12.188	12.3951
12 h after light	7.7276549999999995	7.07353	8.38178
4 h after dark	7.50782	6.72165	7.92432
8 h after dark	5.73249	4.71769	6.39298
12 h after dark	4.843396666666666	3.57843	5.57891