Year	% of GDP
1975	0.9106031245176905
1976	1.1230925201774844
1977	2.744072021590002
1978	3.4321660998902734
1979	3.0575675426154247
1980	3.72808374268427
1981	6.412373069468755
1982	7.926872020192577
1983	8.769752626789112
1984	9.144692690109919
1985	8.927517174753113
1986	8.275618544704551
1987	8.774491087003721
1988	8.840712483479514
1989	8.166576883154423
1990	7.4938885157824044
1991	7.423063916131214
1992	7.583671501466512
1993	7.843780607247797
1994	6.587692745821257
1995	6.772462657191987
1996	6.637292654028435
1997	7.89550062539303
1998	8.631087314780832
1999	8.557489536510966
2000	9.072000292291591
2001	13.313759185265623
2002	13.063476320357054
2003	12.262461076244575
2004	11.512382917192406
2005	10.608039735308047
2006	9.656954627980332
2007	9.025577572564103
2008	8.600265388389516
2009	9.195377116862174
2010	8.475421755005389
2011	8.148293159761186
2012	8.085036374113308
2013	7.925744268192438
2014	8.11529453504201
2015	9.175893354462303
2016	9.327460912493459
2017	9.381380822946301
2018	8.925789791963807
2019	8.867353109455763
2020	10.291780039949783
2021	10.001751497822669
2022	9.725953226659124