Year	% of GDP
1965	27.286403914826078
1966	26.608446476086513
1967	26.892218119852313
1968	26.85938497662252
1969	25.86728483459831
1970	25.087370450711017
1971	23.519110118933067
1972	24.13060217072579
1973	24.128968580358613
1974	24.382103330190084
1975	23.886469780897933
1976	23.628609540270915
1977	25.047030218049827
1978	23.040461271024213
1979	21.46587742268154
1980	19.359900704818475
1981	19.2477404120391
1982	18.765121343147673
1983	18.71389528367588
1984	17.408929767898222
1985	16.990694303510573
1986	17.47692530711749
1987	18.063738666661834
1988	16.749294283998736
1989	16.057190991462917
1990	17.06678100070274
1991	17.454798161242806
1992	16.793943391758607
1993	14.967829238650184
1994	14.831537866705546
1995	14.018065965144185
1996	12.768819026018994
1997	12.60647114921865
1998	13.235789654803293
1999	13.000771517145399
2000	8.3057195333068
2001	8.320972676676215
2002	8.510005176848482
2003	8.328774165121446
2004	7.910983162313736
2005	7.527266701779512
2006	7.1867695307177
2007	6.934558675957879
2008	6.6873848504052145
2009	6.689740696288099
2010	6.3248538764107005
2011	6.09169610822215
2012	5.582687053549334
2013	5.392714954494723
2014	5.446957214744215
2015	5.9804248084981655
2016	6.606412266057879
2017	6.389663552681199
2018	6.225709689600337
2019	6.410720821683127
2020	7.50848046663349
2021	7.770950685625279
2022	8.874663132377325
2023	8.734953041270053