condition mean min max 4 h after light 99.5 99.5 99.5 8 h after light 60.3 27.4 93.2 12 h after light 95.6 79.8 111.4 4 h after dark 85.89999999999999 39.1 132.7 8 h after dark 103.69999999999999 85.6 121.8 12 h after dark 88.0 59.9 116.1