Year % of GDP 1999 11.242872649644683 2000 13.725534454083824 2001 15.77869959581297 2002 13.634966068048568 2003 13.314030204371052 2004 13.234025389905096 2005 16.62290968325649 2006 16.56821575864887 2007 16.551313062416106 2008 15.818067823976131 2009 12.956352412329514 2010 13.048348846076014 2011 13.954203679675285 2012 13.75467304128722 2013 12.933492451261 2014 13.255361304645197 2015 10.6420948088217 2016 9.183122099698537 2017 10.288405674018327 2018 11.468767601531653 2019 10.938399737976047 2020 10.799119620353693 2021 11.606494475109015 2022 10.970338775292399