condition mean min max 4 h after light 4108.1 4108.1 4108.1 8 h after light 3006.3 2356.8 3655.8 12 h after light 1604.0500000000002 893.3 2314.8 4 h after dark 573.25 232.7 913.8 8 h after dark 1269.0 331.1 2206.9 12 h after dark 2882.7 1946.6 3818.8