Year	% of GDP
1971	4.933847745314223
1972	6.069886888108818
1973	4.8286312142249415
1974	3.8309176993242335
1975	8.690930616378045
1976	8.498293168373152
1977	7.921858145723338
1978	7.801272839252721
1979	7.84564119748288
1980	7.691863159416101
1981	8.558875402190077
1982	6.582553311626644
1983	5.535846098176891
1984	4.955401387512389
1985	4.766596933412959
1986	4.54788603106126
1987	5.527550004884721
1988	4.747646280683912
1989	4.487904297855329
1998	8.78916385304062
1999	10.160757156409737
2000	8.483076139762861
2001	9.848119432997029
2002	10.887473969959844
2003	15.989912204463238
2004	15.302855347523971
2005	14.02749639519752
2006	13.914194252888093
2007	13.242355272395598
2008	13.129098811648376
2009	11.86122734983585
2010	12.427404142618565
2011	11.925564459023349
2012	11.761140967287881
2013	11.95099235580585
2014	13.052413895160075
2015	14.785286430450414
2016	15.829593013099172
2017	16.02801416529099
2018	16.673985249370446
2019	17.948409651397444
2020	22.451253662771435
2021	19.132607614646453
2022	18.75104556497538
2023	21.396074580641468