Year % of GDP 2000 6.10838556 2001 6.3660779 2002 6.66529799 2003 6.40933847 2004 6.09125996 2005 5.26532936 2006 4.87599421 2007 5.52080727 2008 5.89747286 2009 6.62081194 2010 6.26718187 2011 5.86915016 2012 6.35010576 2013 6.49913645 2014 5.8804059 2015 6.10287762 2016 5.76837635 2017 6.62986994 2018 6.04010344 2019 6.12193203 2020 6.1213398 2021 6.30929565