Year	% of GDP
1960	2.76937075940102
1961	3.49735182711723
1962	4.75604763863188
1963	6.56030229872993
1964	6.73778085433656
1965	5.92130892091936
1966	5.54436987322893
1967	5.89865399841647
1968	5.21675925747399
1969	4.6744476253395
1970	5.32860416260944
1971	5.62247221824601
1972	5.80944796022635
1973	6.00530766980007
1974	7.16237356806598
1975	6.698857221202
1976	6.60399318030457
1977	5.89946177340418
1978	6.45279301257256
1979	6.05504565248575
1980	7.86758978797058
1981	7.68069958210803
1982	7.08818946712371
1983	7.05132988646661
1984	4.07730353544605
1985	3.09782345485345
1986	5.41480730223124
1987	2.74385908561452
1988	3.49642915312221
1989	4.82773649275329
1990	3.24748439818673
1991	3.52263601359593
1992	3.05337597286147
1993	3.43169050724156
1994	3.12815700165844
1995	2.67642644355129
1996	2.50682211883349
1997	3.24541126365956
1998	2.72451562468195
1999	2.07182729985576
2000	2.10803360905412
2001	0.00161381261022873
2002	0.00202834520968538
2003	0.00289642367143321
2004	0.00350302151287242
2005	0.00339388668828637
2006	0.00342553572709399
2007	0.00439201867071185
2008	0.00569660426356095
2009	0.00834310333580575
2010	0.00782341469097928
2011	0.00769350973127739
2012	0.00553358723908529
2013	0.00476930582030993
2014	0.00488913893150439
2015	0.00534406392844714
2016	0.00554144352645814
2017	0.00514421856207278
2018	0.00569514735198171
2019	0.0061764356244763
2020	0.00595902194019243
2021	0.00712799459035207
2022	0.00615294828180253
2023	0.00545021464983737