condition	mean	min	max
4 h after light	3.59251	3.26421	3.92081
8 h after light	4.63843	4.6139	4.66296
12 h after light	3.983995	3.73996	4.22803
4 h after dark	4.45241	4.42046	4.48436
8 h after dark	2.99407	2.7677	3.22044
12 h after dark	3.21073	3.08601	3.33545