condition	mean	min	max
4 h after light	4.178113333333334	4.070130000000001	4.32863
8 h after light	4.041523333333333	3.9936	4.091469999999999
12 h after light	4.078713333333333	3.94109	4.25014
4 h after dark	4.12746	4.03509	4.19096
8 h after dark	4.146536666666667	4.023569999999999	4.320880000000001
12 h after dark	4.0746400000000005	3.97535	4.1734800000000005