condition mean min max 3 h after light 11.1779 11.0513 11.3556 6 h after light 11.106823333333333 9.47947 12.623 9 h after light 11.7743 10.5619 13.3416 12 h after light 17.411675 14.3668 21.5937 3 h after dark 27.3357 24.4959 29.952 6 h after dark 31.6839 29.9178 33.679 9 h after dark 27.422233333333335 25.6411 30.6536 12 h after dark 23.261400000000002 22.9467 23.5761