condition	mean	min	max
0 h after light	18.10555	17.6452	18.5659
4 h after light	14.230250000000002	11.9686	16.4919
8 h after light	9.088065	8.24208	9.93405
4 h after dark	15.10725	14.7857	15.4288
8 h after dark	15.3771	14.8932	15.861
12 h after dark	14.262	10.6962	17.8278