condition mean min max 4 h after light 108.6 108.6 108.6 8 h after light 115.2 112.9 117.5 12 h after light 119.0 105.6 132.4 4 h after dark 118.2 116.4 120.0 8 h after dark 105.7 103.4 108.0 12 h after dark 72.65 42.6 102.7