Year	% of GDP
1960	82.73464023154789
1961	72.0646499644611
1962	67.158797633312
1963	82.5642675800742
1964	81.93204402462698
1965	80.62519446657012
1966	81.34324280772682
1967	74.76293278312849
1968	73.1836946777682
1969	71.92924192000397
1970	70.4308636535071
1971	73.93991136990367
1972	70.97481524958667
1973	65.80189889493614
1974	56.72419960357629
1975	63.86983623154093
1976	60.71380770008407
1977	64.23901996442984
1978	62.41354085468741
1979	59.1715223886806
1980	56.92307678485208
1981	59.299893056688404
1982	60.78998110639626
1983	60.29097478856351
1984	66.59192845128933
1985	68.58907839243335
1986	76.76126353003495
1987	76.58325523496518
1988	79.45635874087887
1989	79.80155891606616
1990	72.90392396626449
1991	62.64061817743839
1992	67.79240781735531
1993	72.26415302231464
1994	73.44284443615349
1995	71.89289864757328
1996	68.50583632558677
1997	67.98432171189516
1998	72.78925929278101
1999	68.3812015201047
2000	55.15499401723869
2001	56.88466775815802
2002	57.89312731041348
2003	54.350186859587865
2004	51.720631009511045
2005	46.92281891044866
2006	44.024903667162285
2007	44.53361607159588
2008	44.19719522246679
2009	53.045829077826035
2010	50.22792928029608
2011	50.49009492818376
2012	51.70967663176017
2013	52.9702674587592
2014	54.78608988943201
2015	60.36872666888253
2016	61.14604256336983
2017	60.88586487934313
2018	59.133096703843634
2019	61.06139692168492
2020	66.36999665679909
2021	60.41726497284523
2022	54.095844806345916
2023	58.123570044730755