Year Number of 2002 2760 2003 3191 2004 3716 2005 3767 2006 3586 2007 3255 2008 3285 2009 4748 2011 4386 2012 3828 2013 3757 2014 3657 2015 3337 2016 3607 2017 3470 2018 3782 2019 4050 2020 3225