condition	mean	min	max
4 h after light	7.736095000000001	7.14942	8.32277
8 h after light	6.947115	6.65692	7.23731
12 h after light	6.26942	6.04599	6.49285
4 h after dark	6.6545	6.31272	7.20817
8 h after dark	7.008703333333333	6.82792	7.1518
12 h after dark	6.6552066666666665	6.33208	6.82534