condition mean min max 4 h after light 10761.7 10761.7 10761.7 8 h after light 10878.2 10829.3 10927.1 12 h after light 9812.2 9673.5 9950.9 4 h after dark 9339.2 8789.5 9888.9 8 h after dark 8715.95 8710.1 8721.8 12 h after dark 8891.05 8394.1 9388.0