condition	mean	min	max
4 h after light	15.21845	10.7707	19.6662
8 h after light	7.33581	4.96792	9.7037
12 h after light	13.4548	13.0136	13.896
4 h after dark	35.04773333333333	34.2375	36.1799
8 h after dark	36.65736666666667	34.3827	39.2946
12 h after dark	20.33973333333333	18.5121	23.2718