condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.022116800000000002 0.0 0.0663504 9 h after light 0.0 0.0 0.0 12 h after light 0.0239509 0.0 0.0718527 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0