condition mean min max 4 h after light 2676.0 2676.0 2676.0 8 h after light 2244.3999999999996 2181.2 2307.6 12 h after light 2457.0 1994.3 2919.7 4 h after dark 2413.85 1997.1 2830.6 8 h after dark 2259.45 2176.6 2342.3 12 h after dark 2189.25 2090.6 2287.9