condition mean min max 3 h after light 0.485501 0.258763 0.897199 6 h after light 0.37025566666666665 0.170944 0.582213 9 h after light 0.386259 0.0 0.690557 12 h after light 0.29208525 0.156823 0.357012 3 h after dark 0.3738209 0.0972477 0.534888 6 h after dark 0.2533217 0.0484491 0.41746 9 h after dark 0.8218719999999999 0.0 2.21418 12 h after dark 0.1606376 0.0963082 0.224967