Year	% of GDP
1965	26.667894467823388
1966	27.604559810557994
1967	28.334917947309297
1968	31.455953280355686
1969	31.032680023896436
1970	30.055943289619698
1971	29.66100920639891
1972	31.59473121043475
1973	37.70178651676148
1974	45.44996371460352
1975	36.4531973492373
1976	42.281354675913875
1977	40.38209136225198
1978	35.80165383997752
1979	40.66111348880789
1980	41.78177268219439
1981	32.81172539172118
1982	30.68553527979292
1983	28.670140456523583
1984	27.185295223844026
1985	26.47483149996175
1986	20.638937645533385
1987	24.198228114323246
1988	21.407406689990015
1989	20.040798041573407
1990	34.85767317193525
1991	23.002069242175054
1992	22.10879495047556
1993	19.243344263634665
1994	20.80840941236806
1995	23.800684980626922
1996	26.55601220250306
1997	25.232695986130306
1998	22.558408803133258
1999	29.064595399845132
2000	32.728110353048926
2001	30.948840387590565
2002	31.285230794134293
2003	33.361237799913596
2004	35.44917794779911
2005	38.16512281041645
2006	39.357049970926994
2007	39.43102444656115
2008	40.62545597495705
2009	31.961438268594677
2010	35.258688551700565
2011	34.01495383707104
2012	31.308054352468538
2013	30.051773745793138
2014	26.479891482824396
2015	19.964200179850707
2016	20.551637233441895
2017	23.804780512673997
2018	25.724349912211768
2019	23.491690517825834
2020	18.84385778579224
2021	24.890749433227878
2022	29.29343639850675
2023	28.416748971208783