condition mean min max 4 h after light 12.1488965 11.607119 12.690674 8 h after light 11.508015 11.350729 11.665301 12 h after light 11.016657 9.918354 12.11496 4 h after dark 11.734795 11.70339 11.7662 8 h after dark 10.376528 10.08389 10.669166 12 h after dark 8.301997 8.301997 8.301997