condition	mean	min	max
4 h after light	4.057126666666667	3.95456	4.1764
8 h after light	4.05874	4.0163199999999994	4.12317
12 h after light	3.9440666666666666	3.8881300000000003	4.0282
4 h after dark	4.009493333333333	3.9787	4.02784
8 h after dark	4.0416799999999995	4.03667	4.05047
12 h after dark	4.0541	4.05047	4.05944