| | Volume | Selling Days
in Month | | May 2013 | 7,899 | 26 | | Apr 2013 | 7,844 | 25 | | Mar 2013 | 11,103 | 27 | | Feb 2013 | 11,364 | 24 | | Jan 2013 | 7,126 | 25 | | Dec 2012 | 12,627 | 26 | | Nov 2012 | 11,897 | 25 | | Oct 2012 | 8,757 | 26 | | Sep 2012 | 9,445 | 25 | | Aug 2012 | 11,155 | 27 | | Jul 2012 | 11,619 | 24 | | Jun 2012 | 10,436 | 27 | | May 2012 | 10,592 | 26 | | Apr 2012 | 7,129 | 24 | | Mar 2012 | 10,185 | 28 | | Feb 2012 | 9,239 | 25 | | Jan 2012 | 6,796 | | | Dec 2011 | 10,990 | 27 | | Nov 2011 | 8,428 | 25 | | Oct 2011 | 6,862 | 26 | | Sep 2011 | 8,479 | 25 | | Aug 2011 | 9,024 | 26 | | Jul 2011 | 7,410 | 26 | | Jun 2011 | 6,282 | 26 | | May 2011 | 6,389 | 24 | | Apr 2011 | 6,761 | 27 | | Mar 2011 | 11,287 | 27 | | Feb 2011 | 9,144 | 24 | | Jan 2011 | 7,405 | | | Dec 2010 | 12,502 | 27 | | Nov 2010 | 8,182 | 24 | | Oct 2010 | 7,930 | 27 | | Sep 2010 | 8,305 | 25 | | Aug 2010 | 9,428 | 25 | | Jul 2010 | 9,764 | 27 | | Jun 2010 | 8,304 | 25 | | May 2010 | 8,091 | 26 | | Apr 2010 | 7,211 | 26 | | Mar 2010 | 9,942 | 26 | | Feb 2010 | 7,041 | 24 | | Jan 2010 | 6,711 | 24 | | Dec 2009 | 9,108 | 28 | | Nov 2009 | 5,644 | 23 | | Oct 2009 | 6,451 | 28 | | Sep 2009 | 6,610 | 25 | | Aug 2009 | 7,732 | 26 | | Jul 2009 | 7,096 | 26 | | Jun 2009 | 6,304 | 25 | | May 2009 | 6,496 | 26 | | Apr 2009 | 4,932 | 26 | | Mar 2009 | 7,242 | 25 | | Feb 2009 | 6,359 | 24 | | Jan 2009 | 7,115 | 26 | | Dec 2008 | 8,273 | 26 | | Nov 2008 | 7,631 | 25 | | Oct 2008 | 7,112 | 27 | | Sep 2008 | 7,779 | 24 | | Aug 2008 | 11,076 | 27 | | Jul 2008 | 9,249 | 26 | | Jun 2008 | 9,304 | 24 | | May 2008 | 10,495 | 27 | | Apr 2008 | 9,537 | | | Mar 2008 | 13,821 | 26 | | Feb 2008 | 10,068 | 25 | | Jan 2008 | 8,644 | 25 | | Dec 2007 | 12,655 | 26 | | Nov 2007 | 10,604 | | | Oct 2007 | 9,955 | | | Sep 2007 | 10,250 | 25 | | Aug 2007 | 10,252 | | | Jul 2007 | 9,526 | 24 | | Jun 2007 | 10,558 | 27 | | May 2007 | 10,748 | 26 | | Apr 2007 | 9,945 | 24 | | Mar 2007 | 13,877 | 28 | | Feb 2007 | 9,704 | 24 | | Jan 2007 | 8,964 | 25 | | Dec 2006 | 13,112 | 26 | | Nov 2006 | 10,382 | | | Oct 2006 | 9,406 | 25 | | Sep 2006 | 10,378 | 26 | | Aug 2006 | 9,429 | 27 | | Jul 2006 | 10,548 | 25 | | Jun 2006 | 9,300 | 26 | | May 2006 | 9,786 | 25 | | Apr 2006 | 9,618 | 26 | | Mar 2006 | 11,886 | 27 | | Feb 2006 | 9,244 | | | Jan 2006 | 8,058 | 24 | | Dec 2005 | 12,856 | | | Nov 2005 | 10,363 | | | Oct 2005 | 9,962 | | | Sep 2005 | 11,062 | 25 | | Aug 2005 | 12,339 | 26 | | Jul 2005 | 13,395 | 26 |
| 2013
 2012
 2011
 2010
 2009
 2008
 2007
 2006
 2005
 |
