Year	% of GDP
1977	1.5358077458269916
1978	2.0581271884237156
1979	1.7850277336662006
1980	1.954080135109483
1981	1.0497967566106876
1982	1.3954086713316192
1983	2.0612525746976615
1984	2.1222730295454264
1985	2.099614109761162
1986	2.28210280113002
1987	2.0485346358699337
1988	1.769721475329828
1989	1.9980499411085793
1990	1.8350437446905963
1991	1.3852602383490975
1992	1.4522343013707497
1993	1.7750811438860838
1994	1.6570077015602065
1995	1.0145266627294696
1996	0.6991425084943848
1997	1.0357279245686741
1998	0.7737329571121344
1999	2.0003568125736875
2000	1.6215074428385772
2001	1.4616524536971416
2002	2.2399872546575037
2003	2.121697983064573
2004	2.249329637907959
2005	5.239765135023189
2006	4.980766556068494
2007	4.706195479087337
2008	4.632308839713263
2009	5.07911745282488
2010	4.836452052231633
2011	4.920822510894599
2012	4.785800919730444
2013	4.505186432174394
2014	4.4612888002704825
2015	4.699887367538979
2016	5.093348452095137
2017	5.585118128077734
2018	5.546091359741305
2019	5.597296913249625
2020	5.6272008561841895
2021	6.182193043418797
2022	6.440920112962126
2023	6.939076509730236