condition mean min max 4 h after light 2.1 2.1 2.1 8 h after light 0.8500000000000001 0.8 0.9 12 h after light 5.6499999999999995 1.6 9.7 4 h after dark 0.8 0.7 0.9 8 h after dark 3.65 0.6 6.7 12 h after dark 14.1 3.4 24.8