condition	mean	min	max
4 h after light	4.119153333333333	4.03929	4.18304
8 h after light	4.096523333333334	4.073580000000001	4.12213
12 h after light	4.199323333333333	4.099819999999999	4.31827
4 h after dark	4.09033	4.075480000000001	4.10936
8 h after dark	3.9896299999999996	3.9540699999999998	4.0319199999999995
12 h after dark	3.9922366666666664	3.9101	4.03709