Year	% of GDP
1980	13.698577022992517
1981	14.735063627866849
1982	15.010512528866371
1983	15.496099226553433
1984	15.130293108184484
1985	16.575395839277444
1986	16.94786746378959
1987	16.8729281465483
1988	16.323858850283347
1989	16.534694991308566
1990	18.186584887619905
1991	19.033161385408988
1992	20.33615537848606
1993	18.85580461692874
1994	17.189307458143073
1995	15.348164151270266
1996	13.849005481590334
1997	12.14316755407646
1998	18.345257100537797
1999	19.606503007474842
2000	19.785111972033302
2001	19.36845589951401
2002	19.17815384391403
2003	20.110589820473116
2004	19.361909893273506
2005	18.15356664916954
2006	18.146940530031504
2007	16.688325764592353
2008	17.149825794590527
2009	16.739357431557295
2010	16.502438541259682
2011	15.84998756753604
2012	15.790962526112972
2013	17.082607005911473
2014	16.83307686362102
2015	16.089141458635016
2016	15.58886361145764
2017	15.58457694351586
2018	16.421363247006955
2019	16.711792913086803
2020	19.402652905358988
2021	18.950279522326678
2022	18.322488899521083
2023	18.182878850453683