Year Number 2000 29822 2001 38105 2002 37274 2003 36573 2004 34765 2005 31950 2006 28984 2007 36402 2008 36214 2009 30733 2010 32323 2011 23500 2012 17642 2013 185 2017 8799 2018 12763 2019 34346 2020 33109 2021 26875 2022 13068