Year	% of GDP
1970	4.842301974724882
1971	5.124160521796852
1972	5.918433207360715
1973	9.54535545181456
1974	6.515152318329847
1975	5.179977655549109
1976	3.646084695508632
1977	4.403737524231983
1978	3.9896463519749688
1979	8.992566174455629
1980	10.387728380522669
1981	11.710341706063854
1982	9.959122802872864
1983	6.3759492535432765
1984	6.591966731430558
1985	5.464176773362527
1986	9.20162995625447
1987	13.557892603622335
1988	14.405139594645838
1989	9.474995530125312
1990	15.423547237985572
1991	10.748860042267403
1992	4.2284412127865165
1993	7.732701253383547
1994	11.603084858631782
1995	13.600394654488532
1996	11.872465999736361
1997	15.682370908545673
1998	6.950624803512912
1999	21.849203455892834
2000	16.148890451527006
2001	18.939860685735326
2002	6.653665882470576
2003	17.462415369689648
2004	21.202723750554185
2005	15.113358847877592
2006	26.32715230467355
2007	26.16198887680558
2008	7.023286082282909
2009	12.071094414327579
2010	23.069471677080276
2011	17.596031406585453
2012	18.743524423180247
2013	20.934481044653218
2014	21.818488078267855
2015	22.654182689049165
2016	20.48652361025822
2017	29.76365175257009
2018	21.75929150169815
2019	28.09499357646362
2020	23.10030051836076
2021	31.620740017912773
2022	29.84379759508758