Year	% of GDP
1965	20.726320712707395
1966	20.507488344228307
1967	21.016924489495096
1968	22.087638078920936
1969	20.75465871690689
1970	19.566765826060543
1971	20.35470909814733
1972	21.336835121346738
1973	22.202772640933123
1974	24.130578087131326
1975	22.767107136778296
1976	21.683859607445353
1977	23.688998110579842
1978	24.588433797547047
1979	26.051802480332032
1980	27.81141241779938
1981	17.194365054153497
1982	16.795794796847684
1983	18.704054204792094
1984	20.69031440461999
1985	21.088264031245625
1986	24.608622645264003
1987	25.736779808594747
1988	25.273803484906598
1989	25.285278542205603
1990	23.573582248326147
1991	21.325068152406807
1992	23.942614542064536
1993	24.033843896405465
1994	24.53050676069002
1995	22.611353907290034
1996	21.523810675815156
1997	20.616027878866877
1998	19.45591289272161
1999	27.172254663380397
2000	27.976373293137097
2001	28.241355054896832
2002	27.618805528232233
2003	26.52121725621641
2004	26.7063429251352
2005	27.775073375165732
2006	28.035282556600567
2007	29.58178217893827
2008	31.65096867877536
2009	25.999622256496824
2010	27.733096234768695
2011	29.550477199147224
2012	27.781479720539515
2013	25.7226424128645
2014	24.56399502512494
2015	21.459623901477123
2016	21.568035533156472
2017	23.45692213810103
2018	24.479511168684486
2019	22.91217291937515
2020	21.07744980546867
2021	24.81056322617083
2022	26.818014837770082
2023	25.700369387566152