Year	% of GDP
1963	7.404832426471554
1964	7.820906505710766
1965	5.630654009830005
1966	5.850265002297045
1967	2.0381336284262126
1968	4.1886703148059246
1969	5.516219803694751
1970	9.449936053078144
1971	2.515387927824329
1972	10.182228935773752
1973	15.149443803353947
1974	16.353608289895604
1975	9.209124403450677
1976	19.13288674926558
1977	18.19405953145684
1978	11.999370951885352
1979	11.789301962495186
1980	14.084851769012682
1981	37.48688634774724
1982	35.20479480227075
1983	26.606468768868673
1984	19.033217421223384
1985	21.64276144742397
1986	7.07127732805503
1987	2.899939643525144
1988	1.9087233631901697
1989	0.13046961659172954
1990	-1.769793073258118
1991	-1.2647178942445756
1992	-1.4426515330846645
1993	-3.3373280206099616
1994	5.8310116101280025
1995	17.10542518381982
1996	22.435279046233063
1997	23.49016465212958
1998	24.863942912532
1999	-3.1485588252463095
2000	-1.9211881206672217
2001	-1.2094445550403214
2002	2.439726470347229
2003	3.2122109064432505
2004	5.790300484384758
2005	8.180613755170759
2006	12.4569671099391
2007	12.31819492508489
2008	12.831433813187543
2009	9.710729220814578
2010	14.886405158714716
2011	14.307684040302792
2012	13.541214926158332
2013	14.531322838062549
2014	16.19977889187859
2015	12.056751201653988
2016	8.966014477866132
2017	7.578614465742055
2018	7.969294278185887
2019	10.000689934625749
2020	8.828323163898961
2021	6.284628202389686
2022	5.112706003924475
2023	1.8848486594853955