condition	mean	min	max
0 h after light	6.6838999999999995	6.29223	7.07557
4 h after light	4.7597000000000005	4.2961	5.2233
8 h after light	5.9553	5.74007	6.17053
4 h after dark	7.93914	7.20129	8.67699
8 h after dark	6.7792449999999995	6.53055	7.02794
12 h after dark	7.869035	7.50943	8.22864