condition	mean	min	max
4 h after light	15.299915500000001	13.984335	16.615496
8 h after light	12.993963	12.568925	13.419001
12 h after light	15.537518500000001	14.913751	16.161286
4 h after dark	17.732239999999997	13.459491	22.004989
8 h after dark	19.970902	18.339418	21.602386
12 h after dark	18.729172	18.729172	18.729172