Year % of GDP 2003 5.311192988538518 2004 5.584199425011818 2005 7.728031499641744 2006 6.595158403705084 2007 6.16535560195977 2008 6.875646746705357 2009 5.419481766658446 2010 5.634120626122037 2011 5.3856346536110005 2012 5.1906047886743405 2013 5.413434052413816 2014 5.307186336042629 2015 5.5336036181008526 2016 5.62856345772863 2017 5.271099687942422 2018 5.124005582859179 2019 4.494023910733159 2020 7.574945113634375 2021 5.307789179847351 2022 4.9235528071043815