Year % of GDP 1991 0 1994 7.544642407517449 1995 9.373601552689586 1996 27.851817009108444 1997 2.5000000312500004 1998 2.100000021021232 1999 3.0690106706595617 2000 14.433496333940637 2001 6.704140751736462 2002 7.435791082934255 2003 9.524554843389806 2004 12.256920548990792 2005 11.77990023042064 2006 14.646341149819534 2007 13.708284218837912 2008 10.857103237084148 2009 14.563435399070368 2010 28.781348936659995 2011 24.892105921755604 2012 14.328231277553236 2013 21.842423441369814 2014 23.223474339105675 2015 18.52712019622326 2016 17.399935897709124 2017 24.987678381573307 2018 20.600959616347048 2019 20.594539679534474 2020 24.602280952327998 2021 27.521323625776763 2022 31.465838104456267 2023 32.115118227071065