condition	mean	min	max
4 h after light	7.6453945	7.611911	7.678878
8 h after light	8.1575635	7.514383	8.800744
12 h after light	7.5038435	6.88581	8.121877
4 h after dark	7.6248214999999995	7.339856	7.909787
8 h after dark	7.896895000000001	7.678878	8.114912
12 h after dark	8.114912	8.114912	8.114912