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 0.031545833333333335 0.0 0.189275 14 h after light 0.0 0.0 0.0 18 h after light 0.03065 0.0 0.1839 2 h after dark 0.0 0.0 0.0