Year Number 2008-01-01 522471.00 2009-01-01 1285553.00 2010-01-01 1601466.00 2011-01-01 2196270.00 2012-01-01 2738795.00 2013-01-01 2695139.00 2014-01-01 3134754.00 2015-01-01 3435189.00 2016-01-01 3591579.00 2017-01-01 3396618.49