Year	% of GDP
1964	34.83705023995109
1965	31.047915855083758
1966	30.965697240865026
1967	34.22406967537609
1968	32.431944756192905
1969	26.763561623724584
1970	25.993864784942893
1971	28.47093712555698
1972	29.67782653122558
1973	29.462209791377315
1974	32.22527413110712
1975	35.668076672442815
1976	38.61644228144703
1977	36.381485247184806
1978	31.970701476557302
1979	30.01938126302795
1980	30.376460406750322
1981	29.329825104472988
1982	33.5930196322842
1983	36.56521507382337
1984	38.578494229712405
1985	42.792584522676535
1986	34.730055780933064
1987	42.46344300603958
1988	43.313481882760215
1989	42.50861916283651
1990	44.02862195840871
1991	36.745050203374674
1992	35.88728794343784
1993	40.30245174776129
1994	37.3951606768406
1995	39.95456183650472
1996	45.21014644858153
1997	57.3956037766825
1998	59.40206995539923
1999	59.866490464550914
2000	55.01416209129888
2001	45.79097556291484
2002	46.8536710472515
2003	46.90233015173117
2004	49.10711045638176
2005	50.10287186390554
2006	50.91518885509877
2007	52.95665109456766
2008	54.09047919078197
2009	56.05780654261363
2010	52.939945070974034
2011	54.78472172996085
2012	50.76048744846271
2013	47.98330892641252
2014	51.7922908732553
2015	58.75613744162674
2016	57.746737824321706
2017	60.60988109033952
2018	58.934413287432754
2019	58.154470864089134
2020	59.48739588631119
2021	57.44878663941873
2022	60.446113458161655
2023	64.35417898679282