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 0.0 0.0 0.0 14 h after light 0.0 0.0 0.0 18 h after light 0.07100216666666666 0.0 0.426013 2 h after dark 0.08599649999999999 0.0 0.515979