Year	% of GDP
1981	17.923211098299703
1982	17.295027109302225
1983	17.060699825497583
1984	15.051007696504245
1985	14.563704612365392
1986	15.507391734438489
1987	15.770099824758619
1988	16.357456505640545
1989	16.164208054115672
1990	16.18232133837197
1991	15.906833503275692
1992	16.496974349789806
1993	16.132042702192827
1994	17.128293861330324
1995	17.35254161975268
1996	16.642916730851915
1997	16.668934082661053
1998	15.91094467283395
1999	14.29593292844173
2000	13.872564735261928
2001	13.84891716929067
2002	12.998323186863036
2003	13.350320817986633
2004	13.026653151722078
2005	12.342792589944478
2006	11.132039139382652
2007	10.864718313409034
2008	10.357904701444525
2009	10.645595263250433
2010	9.93740670445257
2011	9.853129836551433
2012	9.707455158016348
2013	10.078932210204426
2014	10.216706746565599
2015	10.242345028753368
2016	10.280673297598746
2017	10.343064521362708
2018	10.62720313617322
2019	11.022847742665629
2020	11.072483667314588
2021	11.552318099265753
2022	11.394478270163047
2023	11.179489238812776