condition	mean	min	max
4 h after light	7.810346666666667	7.80138	7.815230000000001
8 h after light	8.181790000000001	8.14025	8.25116
12 h after light	7.974383333333333	7.8562	8.08762
4 h after dark	7.86271	7.64815	8.01361
8 h after dark	7.64074	7.4247	7.9116100000000005
12 h after dark	7.5492	7.48692	7.5857