| | Volume | Selling Days in Month | | Apr 2013 | 19,894 | 25 | | Mar 2013 | 32,028 | 27 | | Feb 2013 | 24,936 | 24 | | Jan 2013 | 21,319 | 25 | | Dec 2012 | 27,251 | 26 | | Nov 2012 | 21,691 | 25 | | Oct 2012 | 18,622 | 26 | | Sep 2012 | 24,135 | 25 | | Aug 2012 | 22,234 | 27 | | Jul 2012 | 19,318 | 24 | | Jun 2012 | 19,911 | 27 | | May 2012 | 20,357 | 26 | | Apr 2012 | 21,506 | 24 | | Mar 2012 | 32,376 | 28 | | Feb 2012 | 25,651 | 25 | | Jan 2012 | 23,996 | | | Dec 2011 | 22,353 | 27 | | Nov 2011 | 18,432 | 25 | | Oct 2011 | 18,326 | 26 | | Sep 2011 | 25,521 | 25 | | Aug 2011 | 22,632 | 26 | | Jul 2011 | 20,783 | 26 | | Jun 2011 | 19,307 | 26 | | May 2011 | 17,875 | 24 | | Apr 2011 | 20,638 | 27 | | Mar 2011 | 30,905 | 27 | | Feb 2011 | 19,387 | 24 | | Jan 2011 | 14,267 | | | Dec 2010 | 21,479 | 27 | | Nov 2010 | 15,304 | 24 | | Oct 2010 | 18,013 | 27 | | Sep 2010 | 18,580 | 25 | | Aug 2010 | 19,739 | 25 | | Jul 2010 | 20,732 | 27 | | Jun 2010 | 18,238 | 25 | | May 2010 | 22,605 | 26 | | Apr 2010 | 18,935 | 26 | | Mar 2010 | 23,193 | 26 | | Feb 2010 | 17,054 | 24 | | Jan 2010 | 15,694 | 24 | | Dec 2009 | 18,255 | 28 | | Nov 2009 | 14,255 | 23 | | Sep 2009 | 14,234 | 25 | | Aug 2009 | 26,542 | 26 | | Jul 2009 | 19,032 | 26 | | Jun 2009 | 13,729 | 25 | | May 2009 | 16,718 | 26 | | Apr 2009 | 16,139 | 26 | | Mar 2009 | 21,974 | 25 | | Feb 2009 | 16,401 | 24 | | Jan 2009 | 15,420 | 26 | | Dec 2008 | 17,965 | 26 | | Nov 2008 | 14,134 | 25 | | Oct 2008 | 16,442 | 27 | | Sep 2008 | 16,169 | 24 | | Aug 2008 | 23,680 | 27 | | Jul 2008 | 22,418 | 26 | | Jun 2008 | 23,771 | 24 | | May 2008 | 27,921 | 27 | | Apr 2008 | 23,760 | | | Mar 2008 | 32,929 | 26 | | Feb 2008 | 23,548 | 25 | | Jan 2008 | 21,212 | 25 | | Dec 2007 | 24,933 | 26 | | Nov 2007 | 20,580 | | | Oct 2007 | 22,201 | | | Sep 2007 | 25,098 | 25 | | Jul 2007 | 25,853 | 24 | | Jun 2007 | 25,761 | 27 | | Apr 2007 | 21,060 | 24 | | Mar 2007 | 37,742 | 28 | | Jan 2007 | 19,265 | 25 | | Dec 2006 | 19,912 | 26 | | Nov 2006 | 20,792 | | | Oct 2006 | 18,843 | 25 | | Sep 2006 | 20,261 | 26 | | Aug 2006 | 22,311 | 27 | | Jul 2006 | 25,963 | 25 | | Jun 2006 | 23,727 | 26 | | Apr 2006 | 22,385 | 26 | | Mar 2006 | 25,514 | 27 | | Jan 2006 | 18,177 | 24 | | Dec 2005 | 19,156 | | | Nov 2005 | 17,817 | | | Oct 2005 | 19,495 | | | Sep 2005 | 19,918 | 25 | | Aug 2005 | 22,135 | 26 | | Jul 2005 | 24,820 | 26 |
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