condition	mean	min	max
4 h after light	15.182549999999999	14.4934	15.8717
8 h after light	11.87425	10.9824	12.7661
12 h after light	15.3076	14.341	16.2742
4 h after dark	19.02045	16.9529	21.088
8 h after dark	15.2594	15.0043	15.5145
12 h after dark	14.8375	14.4616	15.2134