condition mean min max 4 h after light 67.9 67.9 67.9 8 h after light 129.6 116.7 142.5 12 h after light 76.6 58.3 94.9 4 h after dark 132.35000000000002 122.4 142.3 8 h after dark 138.7 130.9 146.5 12 h after dark 121.35 65.7 177.0