Year	% of GDP
1960	19.345853162397002
1961	18.80594380847218
1962	18.09014746745811
1963	17.68906469890211
1964	17.89808451891064
1965	18.115888878660133
1966	21.46436236402638
1967	19.233984231925934
1968	17.56546248455095
1969	16.996040425117958
1970	17.07673207170669
1971	18.136309701450568
1972	18.254470768109055
1973	20.483312300864526
1974	26.819090535759916
1975	27.00897325054125
1976	28.223786800044945
1977	29.856363919619756
1978	29.40772295169298
1979	29.758799255251972
1980	32.42172259376062
1981	26.129400110008728
1982	23.588581334748937
1983	23.262073505998487
1984	24.269203794026005
1985	22.675278653200802
1986	20.740170162523224
1987	22.227336443907127
1988	25.34788243550792
1989	27.73560838657735
1990	26.709159483999542
1991	28.265430532386024
1992	29.627069329354814
1993	30.559661201432554
1994	30.520601595741322
1995	31.726958789186494
1996	30.971371683897868
1997	31.40170872085556
1998	29.92199415452139
1999	34.628772673909886
2000	36.376841746926914
2001	35.43989802272106
2002	36.094125331224696
2003	37.288795832709
2004	40.840089080917664
2005	44.14689250193417
2006	44.993696808757775
2007	45.07820536486607
2008	52.447025868853
2009	41.302985500958
2010	43.36569906938343
2011	49.28265823958058
2012	48.30167744527356
2013	46.499993224553215
2014	44.62782742528964
2015	39.591526652950634
2016	37.074653400700235
2017	40.04730568980844
2018	42.69009817261462
2019	40.78192937773262
2020	36.92534673868583
2021	43.65792859029351
2022	47.749725070698986
2023	43.868858148037155