condition mean min max 4 h after light 2.24047 2.11386 2.36708 8 h after light 3.03787 3.00518 3.07056 12 h after light 3.24655 3.02363 3.46947 4 h after dark 5.8187766666666665 5.27801 6.34798 8 h after dark 3.809353333333333 3.33638 4.14978 12 h after dark 3.22171 2.63747 3.99603