condition	mean	min	max
4 h after light	9.395965	8.97532	9.81661
8 h after light	10.078420000000001	9.08974	11.0671
12 h after light	9.47085	6.3581	12.5836
4 h after dark	19.421349999999997	18.1714	20.6713
8 h after dark	19.2939	18.345	20.2428
12 h after dark	14.4402	13.4911	15.3893