condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0160597 0.0 0.0963582 14 h after light 0.034326916666666665 0.0 0.116245 18 h after light 0.01260485 0.0 0.0756291 2 h after dark 0.0 0.0 0.0