condition mean min max 2 h after light 1.31826 1.10582 1.73275 6 h after light 1.22786 1.03915 1.48397 10 h after light 1.1649633333333334 1.03554 1.31108 2 h after dark 1.29084 1.11687 1.38648 6 h after dark 0.8982020000000001 0.710478 1.02013 10 h after dark 0.8712913333333333 0.843883 0.910605