condition mean min max 2 h after light 0.13765916666666667 0.0 0.495284 6 h after light 0.10351116666666667 0.0 0.399894 10 h after light 0.082249 0.0 0.493494 14 h after light 0.0838405 0.0 0.273303 18 h after light 0.03561916666666667 0.0 0.213715 2 h after dark 0.0736005 0.0 0.441603