condition	mean	min	max
4 h after light	16.410745499999997	14.577886	18.243605
8 h after light	19.7056915	16.375973	23.03541
12 h after light	20.026741	15.936363	24.117119
4 h after dark	23.666763500000002	20.533346	26.800181
8 h after dark	20.9875265	16.674436	25.300617
12 h after dark	17.563912	17.563912	17.563912