condition mean min max 4 h after light 2168.3 2168.3 2168.3 8 h after light 2088.75 1740.6 2436.9 12 h after light 2052.95 1855.5 2250.4 4 h after dark 2119.8500000000004 2056.4 2183.3 8 h after dark 1880.7 1856.2 1905.2 12 h after dark 1902.6 1896.1 1909.1