condition mean min max 2 h after light 0.4788735 0.326799 0.708192 6 h after light 0.4076795 0.0 0.745798 10 h after light 0.9326728333333333 0.317675 1.56007 14 h after light 1.0746111666666667 0.328108 2.22722 18 h after light 0.4604608333333333 0.129306 1.08098 2 h after dark 0.757097 0.0 1.67523