Year % of GDP 2000 1.38067818 2001 1.7786721 2002 1.84663904 2003 1.7674284 2004 1.72443783 2005 1.79870033 2006 1.9863174 2007 2.3904438 2008 2.92993355 2009 2.90805674 2010 2.99182129 2011 3.00047994 2012 2.87550759 2013 2.92996645 2014 3.03566694 2015 3.14627051 2016 3.32299232 2017 3.1884737 2018 3.24629021 2019 3.29100513 2020 3.74765062 2021 3.4270196