Year 1 in: rate varies by country 2000 350 2001 300 2002 320 2003 300 2004 300 2005 380 2006 380 2007 370 2008 350 2009 330 2010 320 2011 310 2012 310 2013 290 2014 350 2015 330 2016 280 2017 240 2018 230 2019 230 2020 160