Year 1 in: rate varies by country 2000 230 2001 280 2002 240 2003 230 2004 180 2005 190 2006 200 2007 190 2008 190 2009 180 2010 180 2011 200 2012 240 2013 260 2014 270 2015 270 2016 340 2017 280 2018 300 2019 320 2020 300