condition mean min max 4 h after light 95.1 95.1 95.1 8 h after light 63.2 59.4 67.0 12 h after light 85.05000000000001 52.7 117.4 4 h after dark 96.3 93.6 99.0 8 h after dark 70.7 62.9 78.5 12 h after dark 86.15 76.3 96.0