| | Volume | Selling Days
in Month | | Apr 2013 | 4,461 | 25 | | Mar 2013 | 5,286 | 27 | | Feb 2013 | 6,051 | 24 | | Jan 2013 | 4,659 | 25 | | Dec 2012 | 4,113 | 26 | | Nov 2012 | 3,574 | 25 | | Oct 2012 | 3,981 | 26 | | Sep 2012 | 4,806 | 25 | | Aug 2012 | 4,249 | 27 | | Jul 2012 | 4,194 | 24 | | Jun 2012 | 5,411 | 27 | | May 2012 | 5,575 | 26 | | Apr 2012 | 5,280 | 24 | | Mar 2012 | 7,160 | 28 | | Feb 2012 | 4,736 | 25 | | Jan 2012 | 4,711 | | | Dec 2011 | 5,032 | 27 | | Nov 2011 | 3,735 | 25 | | Oct 2011 | Data not available | 26 | | Sep 2011 | 5,803 | 25 | | Aug 2011 | 6,960 | 26 | | Jul 2011 | 7,972 | 26 | | Jun 2011 | 8,299 | 26 | | May 2011 | 7,568 | 24 | | Apr 2011 | 8,081 | 27 | | Mar 2011 | 7,560 | 27 | | Feb 2011 | 6,893 | 24 | | Jan 2011 | 5,714 | | | Dec 2010 | 4,874 | 27 | | Nov 2010 | 4,306 | 24 | | Oct 2010 | 5,111 | 27 | | Sep 2010 | 4,961 | 25 | | Aug 2010 | 4,293 | 25 | | Jul 2010 | 5,648 | 27 | | Jun 2010 | 4,198 | 25 | | May 2010 | 4,737 | 26 | | Apr 2010 | 3,932 | 26 | | Mar 2010 | 5,434 | 26 | | Feb 2010 | 4,019 | 24 | | Jan 2010 | 4,170 | 24 | | Dec 2009 | 4,355 | 28 | | Nov 2009 | 2,925 | 23 | | Oct 2009 | 3,867 | 28 | | Sep 2009 | 4,712 | 25 | | Aug 2009 | 6,813 | 26 | | Jul 2009 | 4,487 | 26 | | Jun 2009 | 4,362 | 25 | | May 2009 | 4,352 | 26 | | Apr 2009 | 3,919 | 26 | | Mar 2009 | 4,620 | 25 | | Feb 2009 | 4,484 | 24 | | Jan 2009 | 4,730 | 26 | | Dec 2008 | 4,570 | 26 | | Nov 2008 | 5,096 | 25 | | Oct 2008 | 7,486 | 27 | | Sep 2008 | 7,378 | 24 | | Aug 2008 | 9,200 | 27 | | Jul 2008 | 9,644 | 26 | | Jun 2008 | 7,494 | 24 | | May 2008 | 10,430 | 27 | | Apr 2008 | 8,878 | | | Mar 2008 | 10,750 | 26 | | Feb 2008 | 9,105 | 25 | | Jan 2008 | 7,226 | 25 | | Dec 2007 | 5,904 | 26 | | Nov 2007 | 7,983 | | | Oct 2007 | 9,280 | | | Sep 2007 | 12,102 | 25 | | Aug 2007 | 13,020 | | | Jul 2007 | 10,347 | 24 | | Jun 2007 | 13,014 | 27 | | May 2007 | 13,651 | 26 | | Apr 2007 | 12,047 | 24 | | Mar 2007 | 12,536 | 28 | | Feb 2007 | 9,726 | 24 | | Jan 2007 | 9,383 | 25 | | Dec 2006 | 9,910 | 26 | | Nov 2006 | 9,256 | | | Sep 2006 | 10,287 | 26 | | Aug 2006 | 10,954 | 27 | | Jul 2006 | 10,376 | 25 | | Jun 2006 | 10,004 | 26 | | May 2006 | 11,821 | 25 | | Apr 2006 | 10,841 | 26 | | Mar 2006 | 10,250 | 27 | | Feb 2006 | 7,976 | | | Jan 2006 | 7,463 | 24 | | Dec 2005 | 9,673 | | | Nov 2005 | 8,902 | | | Sep 2005 | 9,054 | 25 | | Aug 2005 | 10,945 | 26 | | Jul 2005 | 10,376 | 26 |
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