condition mean min max 4 h after light 3199.1 3199.1 3199.1 8 h after light 2898.1000000000004 2781.8 3014.4 12 h after light 2685.45 2602.8 2768.1 4 h after dark 3420.0 2588.9 4251.1 8 h after dark 3377.2 3121.8 3632.6 12 h after dark 3291.7 3257.2 3326.2