condition	mean	min	max
4 h after light	28610.376666666667	27202.58	29514.53
8 h after light	23878.73889	21852.48	27081.54667
12 h after light	20290.406666666666	17275.78	25374.13333
1.5 h after dark	20208.388890000002	18528.13667	22077.06333
5.5 h after dark	27302.427779999998	22613.60667	32383.73667
9.5 h after dark	29936.66444333333	24916.32	35335.85