condition	mean	min	max
4 h after light	7.984746666666667	7.75675	8.14738
8 h after light	8.13988	7.897869999999999	8.27394
12 h after light	7.964776666666666	7.7994699999999995	8.06204
4 h after dark	7.958423333333333	7.68082	8.15077
8 h after dark	7.878596666666667	7.670789999999999	8.14591
12 h after dark	8.17506	7.982010000000001	8.332139999999999