condition mean min max 2 h after light 8.317011666666666 6.38348 10.9328 6 h after light 9.187083333333334 6.69654 10.8333 10 h after light 7.791885 5.8089 11.4096 14 h after light 8.19787 6.42686 10.7507 18 h after light 8.793493333333334 5.82888 12.5911 2 h after dark 10.91528 8.60534 13.8815