condition mean min max 3 h after light 5.500896666666667 4.43291 7.57955 6 h after light 9.199746666666666 8.21653 9.74214 9 h after light 15.7339 14.8678 16.7237 12 h after light 15.577449999999999 12.6821 21.2035 3 h after dark 38.8629 28.2658 50.9089 6 h after dark 23.334933333333332 21.2611 27.1652 9 h after dark 22.48903333333333 20.9974 23.8648 12 h after dark 29.6359 25.7644 33.5074