Year Number 2004-01-01 2817420.00 2005-01-01 2870868.00 2006-01-01 2620596.00 2007-01-01 2626932.00 2008-01-01 3796699.00 2009-01-01 3929470.00 2010-01-01 3214704.00 2011-01-01 3527028.00 2012-01-01 3129824.00 2013-01-01 4490252.00 2014-01-01 4909155.01 2015-01-01 5201163.00 2016-01-01 6157446.00