condition mean min max 4 h after light 2568.7 2568.7 2568.7 8 h after light 2017.8500000000001 1119.4 2916.3 12 h after light 691.8000000000001 200.9 1182.7 4 h after dark 137.0 34.4 239.6 8 h after dark 80.05000000000001 70.4 89.7 12 h after dark 417.0 104.3 729.7