condition	mean	min	max
4 h after light	7.62657	7.10792	8.14522
8 h after light	5.690915	5.50658	5.87525
12 h after light	7.44501	6.76944	8.12058
4 h after dark	10.207163333333334	9.09169	11.3204
8 h after dark	9.119236666666666	8.40545	9.65449
12 h after dark	9.228	8.15907	10.3015