| | Volume | Selling Days in Month | | Apr 2013 | 25,490 | 25 | | Mar 2013 | 26,175 | 27 | | Feb 2013 | 23,268 | 24 | | Jan 2013 | 23,578 | 25 | | Dec 2012 | 30,376 | 26 | | Nov 2012 | 31,945 | 25 | | Oct 2012 | 25,644 | 26 | | Sep 2012 | 23,156 | 25 | | Aug 2012 | 22,686 | 27 | | Jul 2012 | 19,311 | 24 | | Jun 2012 | 22,231 | 27 | | May 2012 | 24,556 | 26 | | Apr 2012 | 24,302 | 24 | | Mar 2012 | 23,134 | 28 | | Feb 2012 | 18,910 | 25 | | Jan 2012 | 21,230 | | | Nov 2011 | 26,796 | 25 | | Oct 2011 | 24,449 | 26 | | Sep 2011 | 21,649 | 25 | | Aug 2011 | 20,728 | 26 | | Jun 2011 | 22,563 | 26 | | May 2011 | 20,306 | 24 | | Apr 2011 | 19,157 | 27 | | Mar 2011 | 22,546 | 27 | | Feb 2011 | 16,276 | 24 | | Jan 2011 | 17,273 | | | Dec 2010 | 21,469 | 27 | | Nov 2010 | 19,037 | 24 | | Oct 2010 | 19,076 | 27 | | Sep 2010 | 20,666 | 25 | | Aug 2010 | 18,826 | 25 | | Jul 2010 | 17,367 | 27 | | Jun 2010 | 18,997 | 25 | | May 2010 | 19,176 | 26 | | Apr 2010 | 17,628 | 26 | | Mar 2010 | 20,023 | 26 | | Feb 2010 | 14,870 | 24 | | Jan 2010 | 15,158 | 24 | | Dec 2009 | 20,025 | 28 | | Nov 2009 | 16,797 | 23 | | Oct 2009 | 18,193 | 28 | | Sep 2009 | 16,985 | 25 | | Aug 2009 | 17,112 | 26 | | Jul 2009 | 16,228 | 26 | | Jun 2009 | 15,155 | 25 | | May 2009 | 15,134 | 26 | | Apr 2009 | 14,565 | 26 | | Mar 2009 | 15,602 | 25 | | Feb 2009 | 14,199 | 24 | | Dec 2008 | 18,507 | 26 | | Nov 2008 | 14,102 | 25 | | Oct 2008 | 14,996 | 27 | | Sep 2008 | 18,779 | 24 | | Aug 2008 | 18,507 | 27 | | Jul 2008 | 20,733 | 26 | | Jun 2008 | 19,576 | 24 | | May 2008 | 24,480 | 27 | | Apr 2008 | 20,271 | | | Mar 2008 | 20,808 | 26 | | Feb 2008 | 18,564 | 25 | | Jan 2008 | 18,275 | 25 | | Dec 2007 | 27,301 | 26 | | Nov 2007 | 22,819 | | | Oct 2007 | 22,820 | | | Sep 2007 | 22,549 | 25 | | Aug 2007 | 20,980 | | | Jul 2007 | 18,586 | 24 | | Jun 2007 | 19,589 | 27 | | May 2007 | 21,771 | 26 | | Apr 2007 | 20,895 | 24 | | Mar 2007 | 21,612 | 28 | | Feb 2007 | 17,304 | 24 | | Jan 2007 | 17,069 | 25 | | Dec 2006 | 28,115 | 26 | | Nov 2006 | 22,079 | | | Oct 2006 | 20,598 | 25 | | Sep 2006 | 19,873 | 26 | | Aug 2006 | 20,602 | 27 | | Jul 2006 | 21,591 | 25 | | Jun 2006 | 20,802 | 26 | | May 2006 | 21,621 | 25 | | Apr 2006 | 21,270 | 26 | | Mar 2006 | 21,417 | 27 | | Feb 2006 | 17,356 | | | Jan 2006 | 12,469 | 24 | | Dec 2005 | 31,192 | | | Nov 2005 | 18,284 | | | Oct 2005 | 18,349 | | | Sep 2005 | 17,552 | 25 | | Aug 2005 | 19,272 | 26 | | Jul 2005 | 20,791 | 26 |
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