Year	% of GDP
1960	20.973447870854834
1961	20.580295505429458
1962	20.08344076364107
1963	19.997122410897823
1964	20.014786081337927
1965	19.547981835167498
1966	20.351124099672486
1967	20.01473166215501
1968	19.729394404238374
1969	19.221646951774456
1970	19.250595577706832
1971	19.73163794865231
1972	19.22228786859972
1973	21.585396463393636
1974	29.096897973584525
1975	28.199764167186306
1976	28.694682492138007
1977	29.3147626433187
1978	30.365200969230237
1979	31.635178335018985
1980	36.584056789641664
1981	33.269200883957566
1982	32.19480656771268
1983	29.535344341586125
1984	29.71530493579586
1985	28.30006673146941
1986	26.50923858228808
1987	30.042498040943375
1988	32.68918935651734
1989	31.74912258243838
1990	30.059373818582444
1991	32.20345136086661
1992	31.822624268559007
1993	32.20215681997367
1994	34.172711900128455
1995	36.29527227551046
1996	36.04322271144814
1997	36.723658363481405
1998	35.5228386885387
1999	38.773632804300796
2000	42.737525403252064
2001	41.858695447481544
2002	44.23463295253481
2003	47.34353521692186
2004	51.52745529527123
2005	52.91264195936497
2006	53.79517017492379
2007	52.5863140676729
2008	53.80164958528873
2009	43.51213824486752
2010	46.36668046529052
2011	48.501819746005275
2012	47.307974265682695
2013	46.09119536565111
2014	44.64340463089666
2015	41.29936867043482
2016	38.818993677123544
2017	40.229183963001674
2018	42.35700232237738
2019	40.7087231333937
2020	39.354962162705014
2021	43.691131975981556
2022	46.39951984755428
2023	42.85587991537086