condition mean min max 4 h after light 2437.1 2437.1 2437.1 8 h after light 2589.3500000000004 2503.8 2674.9 12 h after light 2956.7 2824.2 3089.2 4 h after dark 2607.65 1563.5 3651.8 8 h after dark 1976.05 1957.1 1995.0 12 h after dark 2146.3 2119.2 2173.4