condition mean min max 4 h after light 5838.0 5838.0 5838.0 8 h after light 6185.9 5054.1 7317.7 12 h after light 6714.25 6141.8 7286.7 4 h after dark 6317.049999999999 6293.2 6340.9 8 h after dark 5078.9 4615.4 5542.4 12 h after dark 3640.5 3466.4 3814.6