condition mean min max 4 h after light 2871.2 2871.2 2871.2 8 h after light 2504.25 2371.3 2637.2 12 h after light 2520.3500000000004 2370.3 2670.4 4 h after dark 2260.45 2101.3 2419.6 8 h after dark 3358.65 2465.5 4251.8 12 h after dark 4000.1 3900.8 4099.4