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 0.15632416666666668 0.0 0.937945 18 h after light 0.07271016666666667 0.0 0.436261 2 h after dark 0.0 0.0 0.0