condition	mean	min	max
4 h after light	18.453866666666666	13.585	21.5454
8 h after light	6.844973333333333	2.61486	11.6655
12 h after light	6.5591800000000005	4.40882	9.44899
4 h after dark	10.964179999999999	7.78334	12.7349
8 h after dark	15.6784	8.495	21.1689
12 h after dark	20.839566666666666	18.8843	23.9269