condition	mean	min	max
4 h after light	3.8962000000000003	3.78966	3.9498900000000003
8 h after light	3.86376	3.6601800000000004	4.06113
12 h after light	3.9249400000000003	3.72086	4.10893
4 h after dark	4.000243333333334	3.84688	4.0858300000000005
8 h after dark	4.08277	3.99361	4.25835
12 h after dark	3.95063	3.8511699999999998	4.00445