Year	% of GDP
1970	0.948156796557671
1971	0.8347777588345217
1972	0.6313089342819872
1973	0.7385011325867821
1974	0.7588628293654317
1975	0.6527203107296082
1976	0.5127394976336197
1977	0.33507264615984333
1978	0.4165067062615001
1979	0.3460347243700775
1980	0.30310306782404767
1981	0.4808913952226776
1982	0.40205955189264037
1983	0.43087586051711263
1984	0.407750778788087
1985	0.5054234585327243
1986	0.4733271139993291
1987	0.5041756350770905
1988	0.7291609859572903
1989	0.7673816670208115
1990	0.7002174433060662
1991	0.9766880812279037
1992	1.2809085406173697
1993	1.6851191012824482
1994	2.014083180314221
1995	1.9462612930317118
1996	2.1635722862713087
1997	2.586746097847557
1998	2.5993319995404476
1999	2.926464454732101
2000	2.4498463601296536
2001	2.7167435369855846
2002	2.5068811986474264
2003	2.266759140102079
2004	2.5098004686584376
2005	3.0602360536902373
2006	3.1834732760978035
2007	3.566721377459758
2008	3.4208728741564696
2009	2.484193475103847
2010	3.0617984324283665
2011	3.0176412106241886
2012	2.611302636468886
2013	2.668355892220674
2014	2.3625003552925374
2015	2.3587343556715195
2016	2.01298222706155
2017	1.8346094355485036
2018	1.9989531826578886
2019	1.7334653891056344
2020	1.7683778237463645
2021	2.0799824780865515
2022	1.5596811282135463