condition	mean	min	max
4 h after light	3.9218400000000004	3.55256	4.29112
8 h after light	4.135	3.95865	4.31135
12 h after light	7.101240000000001	6.45844	7.74404
4 h after dark	9.595146666666666	7.93654	10.816
8 h after dark	9.490326666666666	8.82921	10.3139
12 h after dark	5.945166666666667	5.59318	6.5934