Year % of GDP 2000 2.90389204 2001 3.42501593 2002 3.58957744 2003 3.43583083 2004 4.50741625 2005 4.38560247 2006 5.47225046 2007 4.73330021 2008 6.05759716 2009 3.92779636 2010 4.81632328 2011 3.82126665 2012 4.79517698 2013 3.9839797 2014 5.00648069 2015 4.47327423 2016 4.81820822 2017 4.85577822 2018 4.80628061 2019 4.75078154 2020 5.33435154 2021 6.27256584