condition mean min max 4 h after light 2.34965 1.90241 2.79689 8 h after light 2.97384 2.75329 3.19439 12 h after light 6.317435 5.81387 6.821 4 h after dark 11.530733333333334 10.5239 12.0442 8 h after dark 8.921163333333334 7.50197 9.94645 12 h after dark 4.62119 3.81902 5.27673