condition mean min max 4 h after light 7.5514600000000005 4.80743 11.4145 8 h after light 6.32768 1.49703 10.3078 12 h after light 7.6868066666666675 3.83691 11.976 4 h after dark 8.573033333333333 6.16437 11.6364 8 h after dark 5.80315 3.81018 7.11777 12 h after dark 6.32813 5.19892 7.05112