condition mean min max 3 h after light 13.7102 11.3824 16.0767 6 h after light 14.877133333333333 12.7769 17.133 9 h after light 19.666 17.2135 22.83 12 h after light 20.3435 12.2262 25.2804 3 h after dark 27.8049 24.4992 29.5628 6 h after dark 19.905833333333334 18.5685 22.0394 9 h after dark 16.504966666666668 15.0766 18.7024 12 h after dark 12.395299999999999 10.9526 13.838