condition	mean	min	max
4 h after light	4.030460000000001	3.85489	4.2301400000000005
8 h after light	3.9284566666666665	3.8226	4.04207
12 h after light	3.9467299999999996	3.8681699999999997	4.00296
4 h after dark	3.980596666666666	3.93436	4.0126599999999994
8 h after dark	4.008053333333333	3.9458900000000003	4.1273599999999995
12 h after dark	4.063993333333333	4.04835	4.07685