| | Volume | Selling Days
in Month | | Apr 2013 | 80,003 | 25 | | Mar 2013 | 126,623 | 27 | | Feb 2013 | 90,489 | 24 | | Jan 2013 | 73,793 | 25 | | Dec 2012 | 86,663 | 26 | | Nov 2012 | 84,300 | 25 | | Oct 2012 | 70,928 | 26 | | Sep 2012 | 82,462 | 25 | | Aug 2012 | 87,360 | 27 | | Jul 2012 | 86,722 | 24 | | Jun 2012 | 81,801 | 27 | | May 2012 | 81,202 | 26 | | Apr 2012 | 64,200 | 24 | | Mar 2012 | 126,132 | 28 | | Feb 2012 | 97,492 | 25 | | Jan 2012 | 72,517 | | | Dec 2011 | 89,937 | 27 | | Nov 2011 | 76,754 | 25 | | Oct 2011 | 75,484 | 26 | | Sep 2011 | 84,485 | 25 | | Aug 2011 | 82,517 | 26 | | Jul 2011 | 77,191 | 26 | | Jun 2011 | 65,659 | 26 | | May 2011 | 69,759 | 24 | | Apr 2011 | 64,765 | 27 | | Mar 2011 | 109,854 | 27 | | Feb 2011 | 83,226 | 24 | | Jan 2011 | 64,442 | | | Dec 2010 | 81,228 | 27 | | Nov 2010 | 63,184 | 24 | | Oct 2010 | 61,843 | 27 | | Sep 2010 | 65,900 | 25 | | Aug 2010 | 67,399 | 25 | | Jul 2010 | 72,573 | 27 | | Jun 2010 | 56,266 | 25 | | May 2010 | 75,673 | 26 | | Apr 2010 | 56,558 | 26 | | Mar 2010 | 85,526 | 26 | | Feb 2010 | 63,148 | 24 | | Jan 2010 | 55,861 | 24 | | Dec 2009 | 64,296 | 28 | | Nov 2009 | 50,644 | 23 | | Oct 2009 | 53,664 | 28 | | Sep 2009 | 48,783 | 25 | | Aug 2009 | 97,580 | 26 | | Jul 2009 | 64,751 | 26 | | Jun 2009 | 51,994 | 25 | | May 2009 | 60,933 | 26 | | Apr 2009 | 42,258 | 26 | | Mar 2009 | 59,392 | 25 | | Feb 2009 | 47,890 | 24 | | Jan 2009 | 46,769 | 26 | | Dec 2008 | 53,829 | 26 | | Nov 2008 | 38,974 | 25 | | Oct 2008 | 49,833 | 27 | | Sep 2008 | 51,786 | 24 | | Aug 2008 | 97,417 | 27 | | Jul 2008 | 86,070 | 26 | | Jun 2008 | 66,543 | 24 | | May 2008 | 90,379 | 27 | | Apr 2008 | 66,318 | | | Mar 2008 | 93,100 | 26 | | Feb 2008 | 76,151 | 25 | | Jan 2008 | 67,961 | 25 | | Dec 2007 | 76,900 | 26 | | Nov 2007 | 70,079 | | | Oct 2007 | 74,992 | | | Sep 2007 | 84,019 | 25 | | Aug 2007 | 85,275 | | | Jul 2007 | 78,351 | 24 | | Jun 2007 | 81,655 | 27 | | May 2007 | 82,314 | 26 | | Apr 2007 | 61,179 | 24 | | Mar 2007 | 97,242 | 28 | | Feb 2007 | 75,514 | 24 | | Jan 2007 | 73,680 | 25 | | Dec 2006 | 78,663 | 26 | | Nov 2006 | 65,633 | | | Oct 2006 | 65,689 | 25 | | Sep 2006 | 77,962 | 26 | | Aug 2006 | 80,419 | 27 | | Jul 2006 | 75,860 | 25 | | Jun 2006 | 65,854 | 26 | | May 2006 | 76,881 | 25 | | Apr 2006 | 77,102 | 26 | | Mar 2006 | 91,209 | 27 | | Feb 2006 | 74,997 | | | Jan 2006 | 67,834 | 24 | | Dec 2005 | 78,397 | | | Nov 2005 | 66,849 | | | Oct 2005 | 62,317 | | | Sep 2005 | 82,478 | 25 | | Aug 2005 | 80,026 | 26 | | Jul 2005 | 93,905 | 26 |
| 2013
 2012
 2011
 2010
 2009
 2008
 2007
 2006
 2005
 |
