Year 1 in: rate varies by country 2000 22 2001 22 2002 23 2003 24 2004 25 2005 26 2006 28 2007 29 2008 30 2009 31 2010 32 2011 34 2012 36 2013 37 2014 39 2015 40 2016 42 2017 44 2018 46 2019 48 2020 50