Year Number 2004-01-01 57718 2005-01-01 81838 2006-01-01 134411.5080 2007-01-01 187444.9496 2008-01-01 212330.0000 2009-01-01 229690.0000 2010-01-01 229256.0000 2011-01-01 240946.0000 2012-01-01 145890.0000 2013-01-01 146398.0000 2014-01-01 165934.0000 2015-01-01 164980.0000 2016-01-01 177458.0000