Year % of GDP 2000 4.81271935 2001 4.86132765 2002 5.12036419 2003 5.20888519 2004 5.19890785 2005 5.14555788 2006 5.13109922 2007 5.17542839 2008 5.1644063 2009 5.40595293 2010 5.60950756 2011 6.12299299 2012 6.28984737 2013 6.51394987 2014 6.45006084 2015 6.21339941 2016 6.24778175 2017 6.18557453 2018 5.9375186 2019 6.02461243 2020 7.05024958 2021 6.97273922