Year 1 in: rate varies by country 2000 330 2001 350 2002 370 2003 440 2004 470 2005 510 2006 550 2007 610 2008 660 2009 730 2010 690 2011 770 2012 850 2013 930 2014 1000 2015 1100 2016 1400 2017 1500 2018 1500 2019 1800 2020 1900