Year	% of GDP
1966	8.178087397086763
1967	9.187747957992999
1968	10.590320699708455
1969	10.041126461211478
1970	6.889857732905003
1971	5.5931004366812225
1972	7.22660472972973
1973	8.12
1974	5.957107992678463
1975	8.54501800720288
1976	11.75145704787463
1977	13.278568362997516
1978	23.13292410714286
1979	29.089668813350965
1980	26.69547522185472
1981	25.333899881713883
1982	22.460330023315482
1983	18.8831642608018
1984	18.313404657016992
1985	15.086182376699469
1986	16.599253266957064
1987	17.12583290620195
1988	16.355962995052963
1989	20.36526023413268
1990	22.343194265828533
1991	20.337745978160047
1992	24.78932969003458
1993	5.277756134412015
1994	4.685493621243379
1995	6.9037033956291225
1996	6.779200574089035
1997	5.175169508913557
1998	4.884402018905877
1999	4.75504718389999
2000	4.562497396772088
2001	11.17274013528459
2002	7.27832762883119
2003	10.038886007172515
2004	14.318376524309922
2005	13.831850665864678
2006	15.690685308832302
2007	12.566520878269117
2008	10.522434729592716
2009	12.891413804664747
2010	13.876710527504333
2011	12.896168285230091
2012	20.877168649491693
2013	14.713554816594149
2014	16.65456117432222
2015	20.351521079297065
2016	24.92148365792915
2017	22.961152358232244
2018	20.878070354049648
2019	22.039276056231813
2020	27.50889586894055
2021	30.37079022134445
2022	33.0066320803172
2023	39.250403717803096