condition mean min max 0 h after light 0.052298 0.0 0.104596 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.103448 0.103014 0.103882 12 h after dark 0.0 0.0 0.0