Year Number of 2000 107000 2001 102000 2002 91000 2003 83000 2004 77000 2005 74000 2006 73000 2007 67000 2008 59000 2009 52000 2010 47000 2011 42000 2012 40000 2013 43000 2014 43000 2015 31000 2016 31000 2017 30000 2018 27000 2019 24000 2020 22000