condition	mean	min	max
4 h after light	18.651400000000002	18.4525	18.8503
8 h after light	16.109299999999998	16.0203	16.1983
12 h after light	13.940449999999998	13.7488	14.1321
4 h after dark	12.02055	11.7735	12.2676
8 h after dark	12.489550000000001	12.4891	12.49
12 h after dark	15.33395	15.2007	15.4672