Year	% of GDP
1995	2.985085010528565
1998	3.32312989234924
1999	3.754505038261415
2000	3.75707006454468
2001	3.84468007087708
2002	3.883855104446415
2003	3.53504991531372
2004	3.74560499191284
2006	3.91671991348267
2007	4.08301019668579
2008	4.82006978988647
2009	5.46355009078979
2010	4.67062997817993
2011	4.307725191116335
2012	4.87308502197266
2013	4.87855005264282
2014	4.69056987762451
2015	4.47038984298706
2016	4.36420011520386
2017	4.468044996261595
2018	4.4615499973297155
2019	4.555345058441166
2020	4.562534809112551
2021	3.97350001335144
2022	3.89409995079041