Year Number 2000 282000 2001 288000 2002 293000 2003 298000 2004 303000 2005 308000 2006 312000 2007 316000 2008 319000 2009 323000 2010 326000 2011 330000 2012 334000 2013 338000 2014 342000 2015 346000 2016 349000 2017 353000 2018 357000 2019 361000 2020 360000