condition	mean	min	max
4 h after light	3.9219966666666664	3.88056	3.9480199999999996
8 h after light	3.9682133333333334	3.91017	4.01234
12 h after light	3.95749	3.92175	4.022419999999999
4 h after dark	3.9999766666666665	3.95119	4.0526
8 h after dark	3.8729400000000003	3.8578	3.88818
12 h after dark	3.916523333333333	3.89515	3.9447699999999997