condition	mean	min	max
4 h after light	4.1125	4.07523	4.13635
8 h after light	3.9780900000000003	3.9444800000000004	4.0122800000000005
12 h after light	3.9839466666666663	3.97435	3.9955199999999995
4 h after dark	4.118636666666667	3.99494	4.28744
8 h after dark	4.004583333333334	3.9521	4.0574900000000005
12 h after dark	4.020533333333333	3.9590699999999996	4.09866