condition	mean	min	max
4 h after light	10.939395000000001	9.18679	12.692
8 h after light	11.44185	10.7818	12.1019
12 h after light	13.830850000000002	12.4318	15.2299
4 h after dark	15.50435	14.5637	16.445
8 h after dark	16.54565	16.205	16.8863
12 h after dark	15.01425	14.2059	15.8226