condition	mean	min	max
4 h after light	3.76851	2.61949	4.91753
8 h after light	2.718535	2.51632	2.92075
12 h after light	4.80309	4.48414	5.12204
4 h after dark	6.554685	5.72246	7.38691
8 h after dark	5.69763	5.24805	6.14721
12 h after dark	6.293055	5.74269	6.84342