| | Volume | Selling Days
in Month | | Apr 2013 | 34,799 | 25 | | Mar 2013 | 38,333 | 27 | | Feb 2013 | 35,778 | 24 | | Jan 2013 | 30,816 | 25 | | Dec 2012 | 43,921 | 26 | | Nov 2012 | 29,832 | 25 | | Oct 2012 | 33,570 | 26 | | Sep 2012 | 33,192 | 25 | | Aug 2012 | 37,838 | 27 | | Jul 2012 | 34,487 | 24 | | Jun 2012 | 37,677 | 27 | | May 2012 | 38,877 | 26 | | Apr 2012 | 32,603 | 24 | | Mar 2012 | 34,337 | 28 | | Feb 2012 | 32,581 | 25 | | Jan 2012 | 24,966 | | | Dec 2011 | 41,960 | 27 | | Nov 2011 | 29,470 | 25 | | Oct 2011 | 31,609 | 26 | | Sep 2011 | 33,194 | 25 | | Aug 2011 | 36,471 | 26 | | Jul 2011 | 37,918 | 26 | | Jun 2011 | 32,782 | 26 | | May 2011 | 32,589 | 24 | | Apr 2011 | 31,204 | 27 | | Mar 2011 | 30,597 | 27 | | Feb 2011 | 32,534 | 24 | | Jan 2011 | 27,658 | | | Dec 2010 | 42,159 | 27 | | Nov 2010 | 27,590 | 24 | | Oct 2010 | 33,136 | 27 | | Sep 2010 | 25,995 | 25 | | Aug 2010 | 25,986 | 25 | | Jul 2010 | 27,798 | 27 | | Jun 2010 | 28,526 | 25 | | May 2010 | 30,160 | 26 | | Apr 2010 | 24,224 | 26 | | Mar 2010 | 27,648 | 26 | | Feb 2010 | 20,456 | 24 | | Jan 2010 | 21,303 | 24 | | Dec 2009 | 31,220 | 28 | | Nov 2009 | 21,301 | 23 | | Oct 2009 | 25,423 | 28 | | Sep 2009 | 18,359 | 25 | | Aug 2009 | 23,145 | 26 | | Jul 2009 | 21,860 | 26 | | Jun 2009 | 19,668 | 25 | | May 2009 | 23,926 | 26 | | Apr 2009 | 20,467 | 26 | | Mar 2009 | 19,086 | 25 | | Feb 2009 | 16,204 | 24 | | Jan 2009 | 19,120 | 26 | | Dec 2008 | 29,783 | 26 | | Nov 2008 | 20,214 | 25 | | Oct 2008 | 21,109 | 27 | | Sep 2008 | 39,029 | 24 | | Aug 2008 | 42,194 | 27 | | Jul 2008 | 27,447 | 26 | | Jun 2008 | 30,713 | 24 | | May 2008 | 30,724 | 27 | | Apr 2008 | 31,854 | | | Mar 2008 | 38,422 | 26 | | Feb 2008 | 33,237 | 25 | | Jan 2008 | 32,270 | 25 | | Dec 2007 | 45,503 | 26 | | Nov 2007 | 34,549 | | | Oct 2007 | 44,456 | | | Sep 2007 | 44,754 | 25 | | Aug 2007 | 51,222 | | | Jul 2007 | 44,060 | 24 | | Jun 2007 | 40,457 | 27 | | May 2007 | 48,336 | 26 | | Apr 2007 | 41,748 | 24 | | Mar 2007 | 40,894 | 28 | | Feb 2007 | 41,279 | 24 | | Jan 2007 | 28,488 | 25 | | Dec 2006 | 41,770 | 26 | | Nov 2006 | 37,440 | | | Oct 2006 | 38,776 | 25 | | Sep 2006 | 39,141 | 26 | | Aug 2006 | 42,262 | 27 | | Jul 2006 | 48,085 | 25 | | Jun 2006 | 47,604 | 26 | | May 2006 | 42,809 | 25 | | Apr 2006 | 38,769 | 26 | | Mar 2006 | 42,837 | 27 | | Feb 2006 | 33,751 | | | Jan 2006 | 27,978 | 24 | | Dec 2005 | 50,688 | | | Nov 2005 | 28,775 | | | Oct 2005 | 24,258 | | | Sep 2005 | 37,233 | 25 | | Aug 2005 | 38,349 | 26 | | Jul 2005 | 78,717 | 26 |
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