Year	% of GDP
1960	67.41491617819733
1961	60.92278747520703
1962	59.820047938459844
1963	59.10045011090589
1964	54.90044686332971
1965	50.04048727961964
1966	46.83952606765677
1967	41.07413683874297
1968	44.441412682598354
1969	54.87650856650763
1970	57.71736785329018
1971	53.71121068934473
1972	50.020713097289494
1973	56.21772095450539
1974	56.032554758117406
1975	56.15281772243102
1976	51.99197581829128
1977	50.57710706269629
1978	52.39216001851447
1979	55.96763093750534
1980	56.6921714681597
1981	54.90986664121963
1982	50.80104984392898
1983	56.32783712291555
1984	55.15909688176029
1985	57.63973933715294
1986	55.5942289520613
1987	53.71066997706186
1988	49.47077394009712
1989	49.11354589861251
1990	50.58174920344815
1991	47.888989323721844
1992	45.36094172842467
1993	44.06149515058077
1994	48.43914562352876
1995	49.97449743702345
1996	53.04277351671548
1997	51.11185170299222
1998	51.895099562268356
1999	50.32260133300959
2000	49.74705251511633
2001	52.07139976910907
2002	48.33450367240294
2003	45.566963380588284
2004	46.885049952644906
2005	47.88475455558436
2006	54.90881813169298
2007	53.208622662717595
2008	64.10645471455759
2009	58.239005343271366
2010	61.98748913721654
2011	66.93110221935338
2012	66.67792818846347
2013	62.12689862768137
2014	58.3624197512715
2015	57.263683558907395
2016	48.60250244193836
2017	47.89252435019159
2018	50.39821523921645
2019	47.76887420526103
2020	47.52206307510636
2021	53.50829147259005
2022	59.15999001584208
2023	51.81490366553111