Year	% of GDP
1962	2.505383745590075
1963	2.821484844590521
1964	2.875210637436979
1965	3.1863919275736583
1967	3.0625256908404497
1968	3.19112059561008
1969	3.296400144295537
1970	3.46572171187514
1971	3.574819505356822
1972	3.4266564464650973
1973	3.157671514405301
1974	3.7172113769679798
1975	4.39136763427444
1976	4.416132453953365
1977	4.348353688815006
1978	4.146647789647956
1979	3.4475648661101883
1980	3.170609120261022
1981	3.3667389016570115
1982	3.5080288400113604
1983	3.5521493364723997
1984	3.351291308060978
1985	3.3653628774085385
1986	3.5064512777666392
1987	3.309075023005453
1989	2.775817126103065
1990	2.537918757365034
1991	2.3474315841494113
1992	2.4655139890353275
1993	2.334464805390608
1994	2.285649963267587
1995	2.1598548299341904
1996	2.059063901601337
1997	2.0349862117474413
1998	1.9132724416529392
1999	2.01488915349866
2000	1.9351153704922062
2001	1.99972178511618
2002	2.042622465276962
2003	1.9974908964772349
2004	1.9487623921065826
2005	1.9236062639818607
2006	1.8824836546416452
2007	1.8517464172529299
2008	1.8653270572246765
2009	2.0373589495096147
2010	1.8880345375552396
2011	1.8135125097517597
2012	1.858355219228568
2013	1.8928534640645398
2014	1.9037235148372356
2015	1.9177409802519045
2016	1.9203594673939635
2017	1.8552966390918888
2018	1.7877844775201361
2019	1.805756881430252
2020	1.9012308691049686
2021	1.7424319990719705
2022	1.831477966867779