Year % of GDP 1985 40.601293068713304 1986 41.479395682355694 1987 43.36805191383227 1988 42.312523446314806 1989 44.454289178218026 1993 45.550796046186306 1994 44.444772249586094 1995 44.02860877014002 1996 48.365862753049115 1997 47.29269578297495 1998 43.31064681802826 1999 41.75402721207039 2000 40.53182917649119 2005 28.653327292307786 2006 31.779681602770797 2007 30.44764553502502 2008 24.617146084990036 2009 26.480205373500095 2010 28.30046024121794 2011 26.47107669654926 2012 27.031583910603906 2013 27.724984633248777 2014 28.156094575520275 2015 28.032923143607807 2016 30.332389496745733 2017 29.981305142032078 2018 31.283159410543632 2019 29.09579414025551 2020 44.23325650988392