Year % of GDP 2000 0.29096901 2001 0.32503283 2002 0.34117612 2003 0.37685171 2004 0.44411397 2005 0.50362611 2006 0.56445849 2007 0.62282085 2008 0.61289465 2009 0.7069785 2010 1.1526072 2011 1.07126713 2012 1.20870054 2013 0.99220741 2014 1.03395808 2015 0.9431653 2016 0.98174191 2017 1.04826784 2018 1.01966834 2019 0.86334223 2020 0.89014059 2021 0.55185044