condition mean min max 4 h after light 2982.9 2982.9 2982.9 8 h after light 3347.3500000000004 3327.9 3366.8 12 h after light 2996.25 2803.3 3189.2 4 h after dark 2871.6 2795.2 2948.0 8 h after dark 2833.55 2771.6 2895.5 12 h after dark 2577.7 2403.3 2752.1