Year	% of GDP
1977	11.899153566182637
1978	14.263578678232452
1979	12.508765164623656
1980	9.996223578221192
1981	11.768528005883287
1982	11.024281180747057
1983	10.383448372253916
1984	12.149370695218947
1985	12.17158915947875
1986	12.377717757879322
1987	11.32140716731483
1988	13.687914471307225
1989	13.028655212647678
1990	14.169709856854498
1991	12.473112028370444
1992	13.226201897452297
1993	9.787459736362107
1994	7.069918615959462
1995	9.198096622207636
1996	8.155125025139103
1997	6.448486655732817
1998	7.05810045897479
1999	6.939731169545188
2000	8.466401483814634
2001	6.84747690216531
2002	6.986213121953975
2003	6.104876565008329
2004	5.852893841676991
2005	6.597305088359952
2006	6.148142934045241
2007	5.95899436916071
2008	6.035909175191796
2009	6.345142645947158
2010	6.265068751213558
2011	6.330563618569089
2012	6.15236356773518
2013	6.5439142269389645
2014	6.554147869493571
2015	6.260300419079908
2016	6.751052933203555
2017	6.7690255429130595
2018	7.109381871180933
2019	7.001020711081832
2020	8.597545384812069
2021	5.356665152164959
2022	4.577069433959372
2023	4.153782008964247