Year	% of GDP
1974	5.39984073749535
1975	7.7470647827126315
1976	10.313487592626347
1977	14.021795258251524
1978	20.729753047178683
1979	19.116572536482657
1980	17.124536497616347
1981	10.05699541556862
1982	6.710180570142728
1983	9.000756060376998
1984	2.387711234955707
1985	8.321287743410705
1986	9.91524167373232
1987	4.363280043869384
1988	13.314790859651552
1989	6.820157999034699
1990	6.8818184977826675
1991	8.24625947045125
1992	6.098674798944331
1993	5.450883217979858
1994	9.536005016914158
1995	8.510207847079121
1996	13.553576241743054
1997	11.535548900129253
1998	13.443612669352339
1999	10.56026833189409
2000	13.448202135310488
2001	15.254855507915774
2002	14.593412747414927
2003	14.00711121298513
2004	12.965343486323027
2005	20.21280037832773
2006	20.665582888153562
2007	18.639940892392044
2008	21.688171160124146
2009	16.470376643512033
2010	24.28859760986777
2011	22.180229197972633
2012	23.306871479579247
2013	24.1926349528744
2014	24.974710854860067
2015	24.169642682567165
2016	21.304227524468672
2017	20.44427357253452
2018	22.92840096798568
2019	25.01498161715506
2020	13.062631293107843
2021	16.991788691514394
2022	21.862550105629442