condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0222121 0.0 0.0666363 12 h after light 0.033626666666666666 0.0 0.10088 3 h after dark 0.027187166666666665 0.0 0.0815615 6 h after dark 0.11367 0.0 0.34101 9 h after dark 0.12723416666666665 0.0863095 0.16448 12 h after dark 0.0 0.0 0.0