Year % of GDP 1986 26.552155686510403 1987 28.070556121746844 1988 26.138401887601525 1989 27.16023546730138 1990 16.340332412421628 1991 20.677579232242312 1992 22.704501470568893 1993 19.991827356374436 1994 19.6021937640984 1995 16.49482870468899 1996 14.585508895177778 1997 16.535940018663037 1998 17.43726508179975 1999 34.565329321122626 2000 31.639201446039444 2001 32.24377281912389 2002 27.53641134497895 2003 28.6366836175608 2004 28.521583972050035 2005 29.02344017259119 2006 24.26146060439712 2007 25.587018366913455 2008 27.865404951573325 2009 30.018425351034004 2010 27.02724959396817 2011 26.68408692046575 2012 26.706212597716505 2013 26.12889566120017 2014 25.05547092796052 2015 24.323813919133976 2016 22.597078377371755 2017 23.591749283800954 2018 24.017711394690817 2019 23.09683893385359 2020 22.35817122761019 2021 23.400562449277537 2022 24.96246560420528 2023 26.01587037724793