Year 1 in: rate varies by country 2000 31 2001 31 2002 32 2003 36 2004 37 2005 39 2006 40 2007 41 2008 43 2009 44 2010 45 2011 47 2012 53 2013 53 2014 54 2015 61 2016 61 2017 67 2018 69 2019 67 2020 77