Year 1 in: rate varies by country 2000 3800 2001 4600 2002 5100 2003 5000 2004 5200 2005 5600 2006 6100 2007 6400 2008 6600 2009 11000 2010 12000 2011 13000 2012 8600 2013 14000 2014 9100 2015 9500 2016 14000 2017 14000 2018 14000 2019 15000 2020 13000