condition mean min max 4 h after light 12.3241175 12.160748 12.487487 8 h after light 13.703222499999999 12.837902 14.568543 12 h after light 15.5537005 14.210939 16.896462 4 h after dark 13.9081065 12.441757 15.374456 8 h after dark 13.866432 13.22983 14.503034 12 h after dark 11.423935 11.423935 11.423935