Year 1 in: rate varies by country 2000 1000 2001 1000 2002 1100 2003 1700 2004 1200 2005 1300 2006 1400 2007 1500 2008 1500 2009 1700 2010 1700 2011 1800 2012 2000 2013 2000 2014 2200 2015 2200 2016 2500 2017 2600 2018 3500 2019 3500 2020 3100