condition mean min max 0 h after light 0.04306725 0.0 0.0861345 4 h after light 0.08619045 0.0847726 0.0876083 8 h after light 0.0875235 0.0 0.175047 4 h after dark 0.08461125 0.0844444 0.0847781 8 h after dark 0.12773485 0.0846807 0.170789 12 h after dark 0.0 0.0 0.0