Year % of GDP 1990 26.50068212824011 1991 30.482784431137727 1992 26.059625318976785 1993 27.10955414012739 1994 32.34566319722445 1995 25.34445590027181 1996 24.961575056722534 1997 20.127916917328943 1998 18.147997442306576 1999 18.39951259569283 2000 16.084864670100252 2001 14.83745955301377 2002 13.954639175257732 2003 12.425662911914923 2004 10.988019038240603 2005 9.086843681373526 2006 7.091570558299816 2007 6.702984785176566 2008 5.595806384102529 2009 6.121933064618064 2010 5.5212527964205815 2011 5.075649936638378 2012 5.139769507724176 2013 5.3662644804234985 2014 5.319406718055516 2015 6.1774549466715705 2016 5.604946280690838 2017 5.60736901068842 2018 5.212505618538681 2019 5.695258143845502 2020 6.738947423534096 2021 5.725983657213487 2022 4.6122083081105325 2023 5.540890447988098