Year % of GDP 2000 0.77568001 2001 1.0631063 2002 0.69710666 2003 0.82314873 2004 0.72261524 2005 1.4651835 2006 1.47005928 2007 1.64296484 2008 1.74936557 2009 2.16013789 2010 2.36881661 2011 2.35752678 2012 1.97191465 2013 1.85814357 2014 1.40883136 2015 1.5937742 2016 1.3003906 2017 1.51208568 2018 1.750916 2019 2.30539036 2020 2.11122155 2021 2.24425006