condition mean min max 0 h after light 8.812075 7.38715 10.237 2 h after light 1.79334 1.57667 2.01001 4 h after light 2.567975 1.69565 3.4403 8 h after light 1.962475 1.55409 2.37086 12 h after light 1.792105 1.00759 2.57662 2 h after dark 4.037775 3.62618 4.44937 4 h after dark 5.562495 5.06777 6.05722 8 h after dark 10.4728 10.0457 10.8999 12 h after dark 9.449995 8.34349 10.5565