Year	% of GDP
1981	17.9232110982997
1982	17.29502710930223
1983	17.06069982549759
1984	15.051007696504248
1985	14.563704612365381
1986	15.507391734438494
1987	15.770099824758624
1988	16.357456505640545
1989	16.164208054115665
1990	16.182321338371967
1991	15.906833503275688
1992	16.4969743497898
1993	16.132042702192813
1994	17.128293861330313
1995	17.352541619752664
1996	16.64291673085191
1997	16.668934082661043
1998	15.91094467283393
1999	14.29593292844173
2000	13.872564735261928
2001	13.84891716929067
2002	12.99832318686304
2003	13.350320817986633
2004	13.026653151722073
2005	12.342792589944475
2006	11.132039139382648
2007	10.864718313409028
2008	10.35790470144452
2009	10.645595263250433
2010	9.937406704452568
2011	9.85312983655143
2012	9.707455158016343
2013	10.078932210204425
2014	10.216706746565599
2015	10.242345028753366
2016	10.280673297598742
2017	10.343064521362704
2018	10.627203136173224
2019	11.022847742665627
2020	11.072483667314598
2021	11.552318099265753
2022	11.394478270163052
2023	11.179489238812781