Year	% of GDP
1981	7.0910700563557
1982	7.160245975663273
1983	7.000936991451938
1984	6.871556311547863
1985	6.6958143602211
1986	5.98204578296302
1987	5.457013961275942
1988	5.2744541518984125
1989	5.1972727169181026
1990	5.031901638137417
1991	4.568664464985497
1992	4.023159647109076
1993	3.829886582325264
1994	3.904620633638017
1995	3.878179628905299
1996	4.019192685282245
1997	3.9233348205721295
1998	3.8026851228441356
1999	3.476209366896025
2000	3.353153167651315
2001	3.330160829096511
2002	3.289579094277997
2003	3.2816143847342083
2004	3.321512909894241
2005	3.195180957912064
2006	3.170723539554766
2007	3.3462503844182327
2008	3.5116149219463813
2009	3.626174668455677
2010	3.8307904242947397
2011	3.972440741406579
2012	4.009441646940508
2013	4.144825119644032
2014	4.127597395396014
2015	4.210442040065362
2016	4.156255145528747
2017	4.120280962840997
2018	3.9460404221880108
2019	4.004981670342855
2020	4.3443973117993595
2021	4.274546047379813
2022	4.273128981911664
2023	4.122959103408482