Year	% of GDP
1971	15.767634854771783
1972	20.599022004889974
1973	23.954183266932272
1974	20.609756097560975
1975	19.0211732037487
1976	22.839480846291664
1977	23.722627737226276
1978	23.0497646267653
1979	19.28278942796873
1980	15.975582217970802
1981	15.076296786071214
1982	14.007847530938472
1983	13.138751272331211
1984	10.76179407639218
1985	8.369872711379324
1986	6.903471607564669
1987	6.228139733006497
1988	6.194026909498329
1989	7.203342435635084
1990	6.827723512729761
1991	7.433182171393897
1992	7.053717592674086
1993	7.065521342850174
1994	8.701697885838998
1995	10.68384076269341
1996	11.8267804405985
1997	12.87302661859982
1998	13.501753579154332
1999	14.215430504889099
2000	15.55773773913505
2001	16.924429856655966
2002	19.04887119339398
2003	24.506598338285706
2004	23.714711670849173
2005	23.297916539693823
2006	21.39595124511017
2007	23.789106442607682
2008	27.52360662930845
2009	19.992067319216765
2010	24.155255735905946
2011	22.390617845598243
2012	20.860088505637194
2013	21.36721124280345
2014	24.35044379741923
2015	24.34973377048342
2016	24.51661065242435
2017	26.379322402816367
2018	27.182299441669254
2019	31.378635674713152
2020	40.606297273397075
2021	34.60681109619142
2022	30.841941455766253
2023	32.41476950384886