Year Number 2007-01-01 8702921.0000 2008-01-01 9272759.7800 2009-01-01 10043056.2946 2010-01-01 10790099.6470 2011-01-01 11754160.0000 2012-01-01 13397917.0000 2013-01-01 12721425.0000 2014-01-01 13136993.0000 2015-01-01 17309364.0000 2016-01-01 18112578.0000