condition	mean	min	max
4 h after light	6.7798766666666666	6.31489	7.08268
8 h after light	7.395113333333333	7.331119999999999	7.43933
12 h after light	8.433436666666667	8.042060000000001	8.66607
4 h after dark	7.60399	7.32614	7.84629
8 h after dark	6.998489999999999	6.25561	7.5098199999999995
12 h after dark	6.16137	6.01021	6.44552