Year 1 in: rate varies by country 2000 160 2001 150 2002 180 2003 180 2004 180 2005 190 2006 240 2007 260 2008 290 2009 310 2010 330 2011 340 2012 350 2013 360 2014 450 2015 460 2016 470 2017 480 2018 490 2019 480 2020 470