| | Volume | Selling Days in Month | | Apr 2013 | 27,836 | 25 | | Mar 2013 | 33,905 | 27 | | Feb 2013 | 25,083 | 24 | | Jan 2013 | 20,696 | 25 | | Dec 2012 | 25,513 | 26 | | Nov 2012 | 18,766 | 25 | | Oct 2012 | 22,222 | 26 | | Sep 2012 | 24,850 | 25 | | Aug 2012 | 28,070 | 27 | | Jul 2012 | 20,792 | 24 | | Jun 2012 | 26,863 | 27 | | May 2012 | 29,674 | 26 | | Apr 2012 | 31,879 | 24 | | Mar 2012 | 34,726 | 28 | | Feb 2012 | 27,008 | 25 | | Jan 2012 | 17,604 | | | Dec 2011 | 23,974 | 27 | | Nov 2011 | 18,577 | 25 | | Oct 2011 | 21,244 | 26 | | Sep 2011 | 23,559 | 25 | | Aug 2011 | 22,497 | 26 | | Jul 2011 | 15,427 | 26 | | Jun 2011 | 16,529 | 26 | | May 2011 | 16,364 | 24 | | Apr 2011 | 20,379 | 27 | | Mar 2011 | 20,463 | 27 | | Feb 2011 | 12,628 | 24 | | Jan 2011 | 9,705 | | | Dec 2010 | 13,132 | 27 | | Nov 2010 | 9,664 | 24 | | Oct 2010 | 16,547 | 27 | | Sep 2010 | 17,348 | 25 | | Aug 2010 | 17,937 | 25 | | Jul 2010 | 14,692 | 27 | | Jun 2010 | 17,893 | 25 | | May 2010 | 20,699 | 26 | | Apr 2010 | 22,386 | 26 | | Mar 2010 | Data not available | 26 | | Feb 2010 | 16,925 | 24 | | Jan 2010 | 10,443 | 24 | | Dec 2009 | 18,122 | 28 | | Nov 2009 | 12,544 | 23 | | Oct 2009 | 12,815 | 28 | | Sep 2009 | 9,046 | 25 | | Aug 2009 | 18,619 | 26 | | Jul 2009 | 16,549 | 26 | | Jun 2009 | 13,753 | 25 | | May 2009 | 15,987 | 26 | | Apr 2009 | 13,874 | 26 | | Mar 2009 | 19,502 | 25 | | Feb 2009 | 15,519 | 24 | | Jan 2009 | 10,685 | 26 | | Dec 2008 | 19,453 | 26 | | Nov 2008 | 20,017 | 25 | | Oct 2008 | 19,903 | 27 | | Sep 2008 | 23,346 | 24 | | Aug 2008 | 24,337 | 27 | | Jul 2008 | 20,858 | 26 | | Jun 2008 | 27,128 | 24 | | Apr 2008 | 30,670 | | | Mar 2008 | 40,539 | 26 | | Feb 2008 | 41,709 | 25 | | Jan 2008 | 34,372 | 25 | | Dec 2007 | 48,384 | 26 | | Nov 2007 | 45,510 | | | Oct 2007 | 40,440 | | | Sep 2007 | 38,668 | 25 | | Aug 2007 | 43,650 | | | Jul 2007 | 34,631 | 24 | | Jun 2007 | 47,658 | 27 | | May 2007 | 53,157 | 26 | | Apr 2007 | 51,441 | 24 | | Mar 2007 | 51,874 | 28 | | Feb 2007 | 46,112 | 24 | | Jan 2007 | 41,486 | 25 | | Dec 2006 | 55,839 | 26 | | Nov 2006 | 52,400 | | | Oct 2006 | 41,635 | 25 | | Sep 2006 | 47,211 | 26 | | Aug 2006 | 47,132 | 27 | | Jul 2006 | 38,124 | 25 | | Jun 2006 | 51,986 | 26 | | May 2006 | 55,680 | 25 | | Apr 2006 | 51,979 | 26 | | Mar 2006 | 59,133 | 27 | | Feb 2006 | 55,127 | | | Jan 2006 | 48,628 | 24 | | Dec 2005 | 52,208 | | | Nov 2005 | 49,917 | | | Oct 2005 | 51,766 | | | Sep 2005 | 45,546 | 25 | | Aug 2005 | 44,279 | 26 | | Jul 2005 | 61,193 | 26 |
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