condition mean min max 4 h after light 3047.5 3047.5 3047.5 8 h after light 2358.0 2287.0 2429.0 12 h after light 1996.5 1950.0 2043.0 4 h after dark 2419.55 1853.3 2985.8 8 h after dark 2868.4 2743.9 2992.9 12 h after dark 3153.6499999999996 2985.2 3322.1