condition mean min max 0 h after light 0.73685 0.28111 1.19259 4 h after light 1.370725 1.35812 1.38333 8 h after light 3.4429600000000002 2.99925 3.88667 4 h after dark 3.381605 2.836 3.92721 8 h after dark 2.013545 1.65819 2.3689 12 h after dark 1.174198 0.840696 1.5077