Year 1 in: rate varies by country 2000 25 2001 26 2002 26 2003 27 2004 28 2005 28 2006 29 2007 29 2008 30 2009 30 2010 31 2011 32 2012 33 2013 33 2014 34 2015 35 2016 36 2017 37 2018 38 2019 39 2020 41