condition	mean	min	max
4 h after light	5.523645	5.01537	6.03192
8 h after light	6.2694399999999995	6.09068	6.4482
12 h after light	7.796115	7.44062	8.15161
4 h after dark	14.48985	13.3532	15.6265
8 h after dark	13.3447	13.229	13.4604
12 h after dark	13.469000000000001	12.1302	14.8078