| | Volume | Selling Days
in Month | | Apr 2013 | 47,556 | 25 | | Mar 2013 | 49,125 | 27 | | Feb 2013 | 41,505 | 24 | | Jan 2013 | 36,302 | 25 | | Dec 2012 | 39,178 | 26 | | Nov 2012 | 41,055 | 25 | | Oct 2012 | 42,452 | 26 | | Sep 2012 | 48,105 | 25 | | Aug 2012 | 50,028 | 27 | | Jul 2012 | 48,074 | 24 | | Jun 2012 | 51,326 | 27 | | May 2012 | 51,771 | 26 | | Apr 2012 | 47,550 | 24 | | Mar 2012 | 57,505 | 28 | | Feb 2012 | 45,038 | 25 | | Jan 2012 | 35,517 | | | Dec 2011 | 43,390 | 27 | | Nov 2011 | 37,007 | 25 | | Oct 2011 | 37,690 | 26 | | Sep 2011 | 35,609 | 25 | | Aug 2011 | 41,188 | 26 | | Jul 2011 | 45,504 | 26 | | Jun 2011 | 45,044 | 26 | | May 2011 | 48,212 | 24 | | Apr 2011 | 47,074 | 27 | | Mar 2011 | 44,179 | 27 | | Feb 2011 | 32,806 | 24 | | Jan 2011 | 27,789 | | | Dec 2010 | 30,444 | 27 | | Nov 2010 | 26,601 | 24 | | Oct 2010 | 31,199 | 27 | | Sep 2010 | 30,071 | 25 | | Aug 2010 | 32,465 | 25 | | Jul 2010 | 35,419 | 27 | | Jun 2010 | 31,906 | 25 | | May 2010 | 31,431 | 26 | | Apr 2010 | 30,036 | 26 | | Mar 2010 | 30,522 | 26 | | Feb 2010 | 24,052 | 24 | | Jan 2010 | 22,123 | 24 | | Dec 2009 | 21,048 | 28 | | Nov 2009 | 17,955 | 23 | | Oct 2009 | 22,490 | 28 | | Sep 2009 | 21,623 | 25 | | Aug 2009 | 40,198 | 26 | | Jul 2009 | 29,345 | 26 | | Jun 2009 | 26,845 | 25 | | May 2009 | 26,060 | 26 | | Apr 2009 | 25,606 | 26 | | Mar 2009 | 24,724 | 25 | | Feb 2009 | 22,073 | 24 | | Jan 2009 | 22,096 | 26 | | Dec 2008 | 14,644 | 26 | | Nov 2008 | 15,182 | 25 | | Oct 2008 | 15,483 | 27 | | Sep 2008 | 17,383 | 24 | | Aug 2008 | 25,065 | 27 | | Jul 2008 | 28,021 | 26 | | Jun 2008 | 2,829 | 24 | | May 2008 | 31,047 | 27 | | Mar 2008 | 24,871 | 26 | | Feb 2008 | 21,988 | 25 | | Jan 2008 | 21,355 | 25 | | Dec 2007 | 24,068 | 26 | | Nov 2007 | 24,177 | | | Oct 2007 | 25,186 | | | May 2007 | 28,494 | 26 | | Apr 2007 | 26,007 | 24 | | Mar 2007 | 27,567 | 28 | | Feb 2007 | 23,512 | 24 | | Jan 2007 | 22,524 | 25 | | Dec 2006 | 30,004 | 26 | | Nov 2006 | 22,203 | | | Oct 2006 | 20,097 | 25 | | Aug 2006 | 25,114 | 27 | | Jul 2006 | 26,429 | 25 | | May 2006 | 26,494 | 25 | | Apr 2006 | 27,807 | 26 | | Mar 2006 | 26,004 | 27 | | Feb 2006 | 20,719 | | | Jan 2006 | 18,110 | 24 | | Dec 2005 | 18,767 | | | Nov 2005 | 20,091 | | | Oct 2005 | 20,631 | | | Aug 2005 | 23,820 | 26 | | Jul 2005 | 26,052 | 26 |
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