condition	mean	min	max
4 h after light	15.208450000000001	14.39	16.0269
8 h after light	17.879849999999998	17.3907	18.369
12 h after light	18.86505	16.5722	21.1579
4 h after dark	29.158549999999998	25.9627	32.3544
8 h after dark	22.981650000000002	22.9728	22.9905
12 h after dark	19.21125	18.8741	19.5484