Year % of GDP 1988 48.77835905733856 1989 40.56313256881569 1990 46.414854320160856 1991 39.80749018089285 1992 32.537688442211056 1993 48.752266643640446 1994 31.13363997621953 1995 37.84781906331423 1996 40.223379852938024 1997 36.89404880939155 1998 36.52078670412877 1999 41.9484795102088 2000 27.15352206369176 2001 27.569933019116032 2002 24.939678475982806 2003 37.19734344446407 2004 33.780970353105886 2005 34.96510450382282 2006 37.05707041289962 2007 34.282548961129336 2008 36.14503814542444 2009 33.09649982461079 2010 44.7215241260457 2011 44.1635704019387 2012 40.25824149881285 2013 40.33250975625513 2014 42.35152590716193 2015 41.94573811720442 2016 41.41090221619738 2017 42.074547786891124 2018 45.13857630272228 2019 44.56871877582935 2020 34.457201906164194 2021 37.16540176794485 2022 36.52955028382801 2023 30.785423699217557