Year Number 2004-01-01 84.79731949 2005-01-01 81.60053473 2006-01-01 27.65977932 2007-01-01 26.12615385 2008-01-01 21.69530552 2009-01-01 15.95736384 2010-01-01 14.33391581 2011-01-01 14.20322576 2012-01-01 13.21402896 2013-01-01 15.51485068 2014-01-01 65.33303722