| | Volume | Selling Days in Month | | Apr 2013 | 117,100 | 25 | | Mar 2013 | 121,938 | 27 | | Feb 2013 | 96,623 | 24 | | Jan 2013 | 84,137 | 25 | | Dec 2012 | 116,740 | 26 | | Nov 2012 | 104,334 | 25 | | Oct 2012 | 94,810 | 26 | | Sep 2012 | 102,845 | 25 | | Aug 2012 | 115,675 | 27 | | Jul 2012 | 104,119 | 24 | | Jun 2012 | 109,438 | 27 | | May 2012 | 119,411 | 26 | | Apr 2012 | 109,837 | 24 | | Mar 2012 | 115,833 | 28 | | Feb 2012 | 98,899 | 25 | | Jan 2012 | 74,628 | | | Dec 2011 | 92,101 | 27 | | Nov 2011 | 74,016 | 25 | | Oct 2011 | 87,218 | 26 | | Sep 2011 | 79,522 | 25 | | Aug 2011 | 73,267 | 26 | | Jul 2011 | 71,100 | 26 | | Jun 2011 | 75,184 | 26 | | May 2011 | 81,773 | 24 | | Apr 2011 | 113,195 | 27 | | Mar 2011 | 121,039 | 27 | | Feb 2011 | 87,263 | 24 | | Jan 2011 | 68,308 | | | Dec 2010 | 114,127 | 27 | | Nov 2010 | 78,899 | 24 | | Oct 2010 | 87,800 | 27 | | Sep 2010 | 86,641 | 25 | | Aug 2010 | 97,195 | 25 | | Jul 2010 | 99,420 | 27 | | Jun 2010 | 95,788 | 25 | | May 2010 | 105,407 | 26 | | Apr 2010 | 102,978 | 26 | | Mar 2010 | 96,540 | 26 | | Feb 2010 | 71,732 | 24 | | Jan 2010 | 60,347 | 24 | | Dec 2009 | 96,568 | 28 | | Nov 2009 | 65,234 | 23 | | Oct 2009 | 75,751 | 28 | | Sep 2009 | 69,970 | 25 | | Aug 2009 | 151,814 | 26 | | Jul 2009 | 106,028 | 26 | | Jun 2009 | 92,140 | 25 | | May 2009 | 88,875 | 26 | | Apr 2009 | 92,216 | 26 | | Mar 2009 | 79,374 | 25 | | Feb 2009 | 63,916 | 24 | | Jan 2009 | 63,175 | 26 | | Dec 2008 | 75,405 | 26 | | Nov 2008 | 68,345 | 25 | | Oct 2008 | 75,756 | 27 | | Sep 2008 | 86,629 | 24 | | Aug 2008 | 131,766 | 27 | | Jul 2008 | 125,916 | 26 | | Jun 2008 | 130,083 | 24 | | May 2008 | 153,104 | 27 | | Mar 2008 | 125,446 | 26 | | Feb 2008 | 102,313 | 25 | | Jan 2008 | 87,343 | 25 | | Dec 2007 | 114,210 | 26 | | Nov 2007 | 98,521 | | | Oct 2007 | 101,913 | | | Sep 2007 | 112,831 | 25 | | Aug 2007 | 141,906 | | | Jul 2007 | 126,668 | 24 | | Jun 2007 | 124,169 | 27 | | May 2007 | 129,447 | 26 | | Apr 2007 | 111,226 | 24 | | Mar 2007 | 126,406 | 28 | | Feb 2007 | 96,368 | 24 | | Jan 2007 | 87,773 | 25 | | Dec 2006 | 112,722 | 26 | | Nov 2006 | 89,246 | | | Oct 2006 | 94,747 | 25 | | Sep 2006 | 99,903 | 26 | | Aug 2006 | 132,990 | 27 | | Jul 2006 | 133,601 | 25 | | Jun 2006 | 111,342 | 26 | | May 2006 | 125,639 | 25 | | Apr 2006 | 119,752 | 26 | | Mar 2006 | 111,282 | 27 | | Feb 2006 | 92,498 | | | Jan 2006 | 84,413 | 24 | | Dec 2005 | 114,179 | | | Nov 2005 | 91,978 | | | Oct 2005 | 94,497 | | | Sep 2005 | 104,529 | 25 | | Aug 2005 | 136,952 | 26 | | Jul 2005 | 123,308 | 26 |
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