condition mean min max 4 h after light 2550.6 2550.6 2550.6 8 h after light 3468.25 2505.3 4431.2 12 h after light 3913.3500000000004 3450.9 4375.8 4 h after dark 3100.25 2454.3 3746.2 8 h after dark 1931.1 1219.6 2642.6 12 h after dark 861.0 570.9 1151.1