condition	mean	min	max
4 h after light	3.9783899999999996	3.95465	4.0149099999999995
8 h after light	3.95173	3.91753	3.98964
12 h after light	3.9896366666666667	3.87836	4.12054
4 h after dark	3.9370066666666665	3.87816	4.017919999999999
8 h after dark	4.03403	3.9476699999999996	4.19421
12 h after dark	3.9381133333333334	3.91669	3.9567099999999997