Year 1 in: rate varies by country 2000 1300 2001 1600 2002 1300 2003 1300 2004 1700 2005 1700 2006 1700 2007 2300 2008 2300 2009 2300 2010 2100 2011 2100 2012 2300 2013 2500 2014 2700 2015 2600 2016 2700 2017 2700 2018 3500 2019 3300 2020 3000