condition mean min max 4 h after light 2720.7 2720.7 2720.7 8 h after light 2466.15 2166.8 2765.5 12 h after light 2226.8 2187.6 2266.0 4 h after dark 1957.15 1768.9 2145.4 8 h after dark 1815.5500000000002 1696.4 1934.7 12 h after dark 1927.0500000000002 1730.8 2123.3