condition mean min max 4 h after light 4.426645000000001 4.27664 4.57665 8 h after light 3.438175 3.42364 3.45271 12 h after light 4.3237000000000005 4.09122 4.55618 4 h after dark 6.287193333333334 6.16476 6.46281 8 h after dark 6.113003333333333 5.91639 6.35386 12 h after dark 5.09558 4.15138 5.6437