Year % of GDP 2000 4.07783461 2001 4.82198191 2002 4.15504408 2003 5.0367589 2004 6.25892353 2005 5.65422964 2006 4.97834015 2007 3.12948632 2008 3.49424887 2009 2.84764099 2010 3.24345636 2011 3.24805617 2012 3.36840105 2013 3.93541193 2014 4.30969286 2015 5.11721087 2016 5.74498892 2017 5.93897438 2018 5.69395018 2019 5.68183947 2020 5.68472815 2021 5.56931353