Year Number of 2000 125000 2001 117000 2002 123000 2003 123000 2004 121000 2005 123000 2006 125000 2007 125000 2008 132000 2009 133000 2010 139000 2011 144000 2012 144000 2013 146000 2014 152000 2015 155000 2016 154000 2017 155000 2018 157000 2019 155000 2020 156000