condition mean min max 0 h after light 16.739 14.8887 18.5893 2 h after light 3.35238 3.34439 3.36037 4 h after light 3.5432949999999996 3.46053 3.62606 8 h after light 4.469075 4.20069 4.73746 12 h after light 5.552 4.97168 6.13232 2 h after dark 6.0804 5.84684 6.31396 4 h after dark 9.17107 7.89264 10.4495 8 h after dark 19.1464 18.4388 19.854 12 h after dark 17.2307 16.2616 18.1998