condition	mean	min	max
4 h after light	7.55439	7.44714	7.66164
8 h after light	9.015995	8.36106	9.67093
12 h after light	11.335139999999999	8.50958	14.1607
4 h after dark	14.909600000000001	14.2675	15.5517
8 h after dark	11.29635	10.2331	12.3596
12 h after dark	9.88402	8.42594	11.3421