condition mean min max 4 h after light 3367.8 3367.8 3367.8 8 h after light 2769.8999999999996 2462.2 3077.6 12 h after light 2380.1499999999996 1859.1 2901.2 4 h after dark 829.5 56.9 1602.1 8 h after dark 138.5 101.7 175.3 12 h after dark 528.7 195.2 862.2