Year	% of GDP
1975	0.31156381625417917
1976	0.30520644000693625
1977	0.25337838520120665
1978	0.28045770501025846
1979	0.30849916998677035
1980	0.3162937740627107
1981	0.3665881352132087
1982	0.3820477781704149
1983	0.395272093533042
1984	0.36460947325312937
1985	0.34451959013867794
1986	0.39097303693054397
1987	0.4255025721757748
1988	0.4157821722843254
1989	0.3630294637579602
1990	0.41165845635999926
1991	0.39526454330132843
1992	0.4439971205315761
1993	0.521142055127783
1994	1.3280683854683546
1995	1.3732296147719985
1996	0.8134705675832448
1997	0.7556622647512107
1998	0.7266569314056526
1999	0.7289531794572468
2000	0.7197522718288897
2001	0.690072075017397
2002	0.6651704484491006
2003	0.6663144045976735
2004	0.6771344685794288
2005	0.6791168182370387
2006	0.6602078823682141
2007	0.6430328221615172
2008	0.5860672394993903
2009	0.9335381337728723
2010	1.0700671617580797
2011	1.0822654084357686
2012	1.0111925082314916
2013	0.8998515369757735
2014	0.7927732895396004
2015	0.734218103172897
2016	0.7073970242821468
2017	0.5858529718870024
2018	0.5673832389190743
2019	0.5436811431367543
2020	0.5222256853018734
2021	0.6047068780492127
2022	1.4847980896036823
2023	0.5658980430398667