condition mean min max 3 h after light 11.677166666666666 10.62 13.6989 6 h after light 7.975913333333334 5.84515 11.259 9 h after light 7.715093333333333 6.44938 8.75854 12 h after light 13.41479 9.61226 20.0142 3 h after dark 17.0684 14.5433 20.9424 6 h after dark 28.598399999999998 25.4138 32.6866 9 h after dark 25.215366666666664 22.2643 27.514 12 h after dark 18.4795 17.7914 19.1676