Year Number of 2000 91000 2001 93000 2002 93000 2003 93000 2004 91000 2005 83000 2006 76000 2007 77000 2008 77000 2009 75000 2010 79000 2011 80000 2012 76000 2013 72000 2014 71000 2015 66000 2016 61000 2017 55000 2018 47000 2019 39000 2020 44000