Year 1 in: rate varies by country 2000 230 2001 240 2002 260 2003 270 2004 290 2005 310 2006 330 2007 350 2008 380 2009 410 2010 440 2011 450 2012 470 2013 480 2014 480 2015 490 2016 520 2017 530 2018 540 2019 540 2020 530