Year 1 in: rate varies by country 2000 1000 2001 1300 2002 1100 2003 1300 2004 1400 2005 1900 2006 2300 2007 2600 2008 2900 2009 3100 2010 4100 2011 4100 2012 4200 2013 4800 2014 6400 2015 6600 2016 7300 2017 7700 2018 7600 2019 7300 2020 6300