condition mean min max 4 h after light 6.6 6.6 6.6 8 h after light 1.6500000000000001 0.6 2.7 12 h after light 21.15 5.4 36.9 4 h after dark 1.75 0.6 2.9 8 h after dark 0.8500000000000001 0.4 1.3 12 h after dark 5.45 5.4 5.5