condition mean min max 4 h after light 4.192853333333334 4.15774 4.23916 8 h after light 4.198160000000001 4.16694 4.25168 12 h after light 4.329983333333334 4.22578 4.50281 4 h after dark 4.255816666666666 4.22436 4.2874099999999995 8 h after dark 4.21542 4.16622 4.2784699999999996 12 h after dark 4.211313333333333 4.1660900000000005 4.2569099999999995