condition	mean	min	max
4 h after light	15.32845	14.8115	15.8454
8 h after light	12.5313	11.5094	13.5532
12 h after light	16.62685	14.194	19.0597
4 h after dark	25.3034	23.4828	26.9038
8 h after dark	23.706466666666664	21.9138	25.4168
12 h after dark	16.6537	12.2837	18.85