condition	mean	min	max
4 h after light	3.9032600000000004	3.57091	4.23561
8 h after light	2.78579	2.71584	2.85574
12 h after light	2.955635	2.70194	3.20933
4 h after dark	3.77897	3.65128	3.90666
8 h after dark	3.031255	2.80502	3.25749
12 h after dark	3.75527	3.48825	4.02229