| | Volume | Selling Days
in Month | | Apr 2013 | 18,091 | 25 | | Mar 2013 | 23,190 | 27 | | Feb 2013 | 17,339 | 24 | | Jan 2013 | 16,211 | 25 | | Dec 2012 | 30,607 | 26 | | Nov 2012 | 22,719 | 25 | | Oct 2012 | 19,850 | 26 | | Sep 2012 | 20,386 | 25 | | Aug 2012 | 24,237 | 27 | | Jul 2012 | 18,235 | 24 | | Jun 2012 | 20,022 | 27 | | May 2012 | 21,463 | 26 | | Apr 2012 | 17,551 | 24 | | Mar 2012 | 20,140 | 28 | | Feb 2012 | 16,678 | 25 | | Jan 2012 | 12,274 | | | Dec 2011 | 25,355 | 27 | | Nov 2011 | 19,458 | 25 | | Oct 2011 | 18,092 | 26 | | Sep 2011 | 14,995 | 25 | | Aug 2011 | 18,103 | 26 | | Jul 2011 | 14,539 | 26 | | Jun 2011 | 10,773 | 26 | | May 2011 | 12,305 | 24 | | Apr 2011 | 17,576 | 27 | | Mar 2011 | 20,682 | 27 | | Feb 2011 | 13,814 | 24 | | Jan 2011 | 12,860 | | | Dec 2010 | 27,560 | 27 | | Nov 2010 | 18,240 | 24 | | Oct 2010 | 21,091 | 27 | | Sep 2010 | 16,948 | 25 | | Aug 2010 | 19,465 | 25 | | Jul 2010 | 18,595 | 27 | | Jun 2010 | 17,332 | 25 | | May 2010 | 22,216 | 26 | | Apr 2010 | 18,359 | 26 | | Mar 2010 | 20,219 | 26 | | Feb 2010 | 13,787 | 24 | | Jan 2010 | 15,517 | 24 | | Dec 2009 | 28,565 | 28 | | Nov 2009 | 18,500 | 23 | | Oct 2009 | 19,502 | 28 | | Sep 2009 | 17,939 | 25 | | Aug 2009 | 22,892 | 26 | | Jul 2009 | 18,517 | 26 | | Jun 2009 | 16,874 | 25 | | May 2009 | 16,922 | 26 | | Apr 2009 | 14,195 | 26 | | Mar 2009 | 14,239 | 25 | | Feb 2009 | 13,108 | 24 | | Jan 2009 | 14,722 | 26 | | Dec 2008 | 23,362 | 26 | | Nov 2008 | 16,223 | 25 | | Oct 2008 | 16,283 | 27 | | Sep 2008 | 16,045 | 24 | | Aug 2008 | 29,281 | 27 | | Jul 2008 | 22,182 | 26 | | Jun 2008 | 20,253 | 24 | | May 2008 | 26,593 | 27 | | Apr 2008 | 23,350 | | | Mar 2008 | 24,939 | 26 | | Feb 2008 | 21,277 | 25 | | Jan 2008 | 20,299 | 25 | | Dec 2007 | 34,555 | 26 | | Nov 2007 | 24,848 | | | Oct 2007 | 25,119 | | | Sep 2007 | 25,114 | 25 | | Aug 2007 | 32,199 | | | Jul 2007 | 27,141 | 24 | | Jun 2007 | 28,869 | 27 | | May 2007 | 31,847 | 26 | | Apr 2007 | 25,995 | 24 | | Mar 2007 | 28,855 | 28 | | Feb 2007 | 22,518 | 24 | | Jan 2007 | 22,118 | 25 | | Dec 2006 | 37,235 | 26 | | Nov 2006 | 26,719 | | | Oct 2006 | 24,006 | 25 | | Sep 2006 | 25,700 | 26 | | Aug 2006 | 31,074 | 27 | | Jul 2006 | 26,959 | 25 | | Jun 2006 | 27,686 | 26 | | May 2006 | 29,999 | 25 | | Apr 2006 | 24,679 | 26 | | Mar 2006 | 27,592 | 27 | | Feb 2006 | 21,127 | | | Jan 2006 | 19,658 | 24 | | Dec 2005 | 35,186 | | | Nov 2005 | 25,649 | | | Oct 2005 | 23,331 | | | Sep 2005 | 22,036 | 25 | | Aug 2005 | 28,125 | 26 | | Jul 2005 | 26,562 | 26 |
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