| | Volume | Selling Days in Month | | Apr 2013 | 33,644 | 25 | | Mar 2013 | 37,704 | 27 | | Feb 2013 | 45,364 | 24 | | Jan 2013 | 29,018 | 25 | | Dec 2012 | 44,005 | 26 | | Nov 2012 | 36,728 | 25 | | Oct 2012 | 34,311 | 26 | | Sep 2012 | 36,339 | 25 | | Aug 2012 | 41,011 | 27 | | Jul 2012 | 37,014 | 24 | | Jun 2012 | 38,170 | 27 | | May 2012 | 38,657 | 26 | | Apr 2012 | 37,525 | 24 | | Mar 2012 | 36,588 | 28 | | Feb 2012 | 30,577 | 25 | | Jan 2012 | 27,209 | | | Dec 2011 | 32,502 | 27 | | Nov 2011 | 28,412 | 25 | | Oct 2011 | 28,028 | 26 | | Sep 2011 | 27,036 | 25 | | Aug 2011 | 25,232 | 26 | | Jul 2011 | 29,066 | 26 | | Jun 2011 | 28,444 | 26 | | May 2011 | 30,100 | 24 | | Apr 2011 | 28,542 | 27 | | Mar 2011 | 27,176 | 27 | | Feb 2011 | 21,461 | 24 | | Jan 2011 | 18,401 | | | Dec 2010 | 23,867 | 27 | | Nov 2010 | 20,189 | 24 | | Oct 2010 | 20,084 | 27 | | Sep 2010 | 19,943 | 25 | | Aug 2010 | 22,855 | 25 | | Jul 2010 | 23,880 | 27 | | Jun 2010 | 21,051 | 25 | | May 2010 | 23,543 | 26 | | Apr 2010 | 23,135 | 26 | | Mar 2010 | 22,148 | 26 | | Feb 2010 | 18,116 | 24 | | Jan 2010 | 18,019 | 24 | | Dec 2009 | 20,387 | 28 | | Nov 2009 | 16,250 | 23 | | Oct 2009 | 17,037 | 28 | | Sep 2009 | 17,358 | 25 | | Aug 2009 | 24,823 | 26 | | Jul 2009 | 20,590 | 26 | | Jun 2009 | 19,027 | 25 | | May 2009 | 19,568 | 26 | | Apr 2009 | 16,289 | 26 | | Mar 2009 | 15,720 | 25 | | Feb 2009 | 13,660 | 24 | | Jan 2009 | 12,744 | 26 | | Dec 2008 | 17,577 | 26 | | Nov 2008 | 14,295 | 25 | | Oct 2008 | 15,889 | 27 | | Sep 2008 | 17,109 | 24 | | Aug 2008 | 22,292 | 27 | | Jul 2008 | 20,422 | 26 | | Jun 2008 | 23,208 | 24 | | May 2008 | 22,346 | 27 | | Apr 2008 | 19,415 | | | Mar 2008 | 19,587 | 26 | | Feb 2008 | 16,556 | 25 | | Jan 2008 | 14,411 | 25 | | Dec 2007 | 20,543 | 26 | | Nov 2007 | 17,689 | | | Oct 2007 | 17,260 | | | Sep 2007 | 18,891 | 25 | | Aug 2007 | 21,655 | | | Jul 2007 | 19,653 | 24 | | Jun 2007 | 23,137 | 27 | | May 2007 | 22,325 | 26 | | Apr 2007 | 19,086 | 24 | | Mar 2007 | 17,355 | 28 | | Feb 2007 | 16,367 | 24 | | Jan 2007 | 16,610 | 25 | | Dec 2006 | 19,942 | 26 | | Nov 2006 | 17,082 | | | Oct 2006 | 15,942 | 25 | | Sep 2006 | 20,082 | 26 | | Aug 2006 | 23,420 | 27 | | Jul 2006 | 22,627 | 25 | | Jun 2006 | 20,121 | 26 | | May 2006 | 22,100 | 25 | | Apr 2006 | 20,528 | 26 | | Mar 2006 | 20,730 | 27 | | Feb 2006 | 16,329 | | | Jan 2006 | 16,237 | 24 | | Dec 2005 | 25,956 | | | Nov 2005 | 18,046 | | | Oct 2005 | 17,207 | | | Sep 2005 | 21,646 | 25 | | Aug 2005 | 23,083 | 26 | | Jul 2005 | 21,553 | 26 |
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