condition mean min max 4 h after light 3.9666050000000004 3.95712 3.97609 8 h after light 2.07763 1.93504 2.22022 12 h after light 3.41262 3.15119 3.67405 4 h after dark 3.21649 3.01592 3.34625 8 h after dark 3.26628 3.05012 3.44477 12 h after dark 4.120463333333333 3.49827 4.77911