Year	% of GDP
1971	0.5045734175021503
1972	0.48846019198702767
1973	0.4880153931449099
1974	0.6832306971806245
1975	1.2925584291045273
1976	1.364348654826372
1977	1.4628128452518423
1978	1.272628859495313
1979	1.194866808065038
1980	1.2483779104586978
1981	1.352282200146588
1982	1.6770470772234958
1983	1.3025999049625392
1984	1.3364431670914696
1985	1.680653159064586
1986	1.2988274173879177
1987	0.8810661918458229
1988	1.0178198618866272
1989	1.169275116865726
1990	1.0465446218991854
1991	0.9517142405732449
1992	0.9035909060000713
1993	0.6877133253481713
1994	0.7009616956645304
1995	0.8119746164211085
1996	0.6505355368197945
1997	0.5386677476357831
1998	0.40652385217824294
1999	0.38584667931601757
2000	0.507091723770568
2001	0.9023220210338389
2002	0.5499152954045785
2003	0.5256027651430002
2004	1.2796422319763128
2005	0.8949356493733754
2006	0.8269657839962692
2007	0.994568060336746
2008	1.9531777104397128
2009	0.6977719829895133
2010	1.0751260117604606
2011	1.22962822876738
2012	0.8167790890450312
2013	0.6113052501878339
2014	0.4426915388587368
2015	0.3458936825736182
2016	0.42244410807869537
2017	0.556773780570494
2018	0.6096180477036344
2019	0.4316168298334638
2020	0.3568690955484143
2021	0.6005162413877183