condition	mean	min	max
4 h after light	3.94792	3.8603699999999996	4.02848
8 h after light	3.935486666666667	3.8695	4.02822
12 h after light	3.93054	3.87486	4.02709
4 h after dark	3.8299333333333334	3.75688	3.9367099999999997
8 h after dark	3.85868	3.77245	3.9863800000000005
12 h after dark	3.8741966666666663	3.8041699999999996	3.92357