condition	mean	min	max
4 h after light	14.74825	12.5852	16.9113
8 h after light	18.284599999999998	16.6131	19.9561
12 h after light	16.8956	15.4789	18.3123
4 h after dark	22.6147	17.8052	27.4242
8 h after dark	18.74405	18.5989	18.8892
12 h after dark	17.33595	15.1887	19.4832