condition mean min max 4 h after light 3206.4 3206.4 3206.4 8 h after light 3554.95 3168.8 3941.1 12 h after light 3584.7 3509.0 3660.4 4 h after dark 2682.3500000000004 2399.8 2964.9 8 h after dark 2036.8000000000002 1888.8 2184.8 12 h after dark 2159.2 1870.8 2447.6