condition mean min max 4 h after light 133.2 133.2 133.2 8 h after light 133.45 121.4 145.5 12 h after light 122.1 104.5 139.7 4 h after dark 166.4 121.3 211.5 8 h after dark 132.55 90.8 174.3 12 h after dark 87.75 74.3 101.2