condition	mean	min	max
4 h after light	18.705199999999998	16.8182	20.5922
8 h after light	14.1359	13.9132	14.3586
12 h after light	15.2498	14.8313	15.6683
4 h after dark	19.6694	17.3498	21.989
8 h after dark	18.6817	17.8822	19.4812
12 h after dark	20.71665	20.2439	21.1894