Year 1 in: rate varies by country 2000 2900 2001 3800 2002 3900 2003 4000 2004 5400 2005 5300 2006 5300 2007 5600 2008 5900 2009 6300 2010 6800 2011 7100 2012 7400 2013 8000 2014 8200 2015 8400 2016 8600 2017 8600 2018 13000 2019 14000 2020 8700