condition mean min max 4 h after light 2191.6 2191.6 2191.6 8 h after light 1810.8000000000002 1755.7 1865.9 12 h after light 2456.9 2176.3 2737.5 4 h after dark 3615.65 2409.7 4821.6 8 h after dark 5051.05 4989.0 5113.1 12 h after dark 4712.4 4002.0 5422.8