Year	% of GDP
1961	12.3057942194017
1962	11.8049318231321
1963	13.1751947345153
1964	13.6949854247929
1965	13.7626301241948
1966	12.6112031003603
1967	14.5842798727851
1968	12.8900107589175
1969	12.7291926658347
1970	15.1189187301366
1971	17.4325345593098
1972	16.4860483656657
1973	17.8933166344074
1974	17.9764306589988
1975	17.3331662070694
1976	16.8270844799119
1977	17.5086026130437
1978	21.7120303649749
1979	20.9732640975024
1980	21.8117780815515
1981	21.0030798503612
1982	20.4370243623288
1983	19.3230115513832
1984	18.9864033544518
1985	19.3340845696329
1986	19.3119882309072
1987	18.4164177260937
1988	18.9261428323448
1989	19.2244787537389
1990	18.6565323520756
1991	19.9580725902224
1992	22.1524502405053
1993	18.496196443499
1994	19.8341558860689
1995	25.8141177808766
1996	21.6816261093782
1997	24.3551778303105
1998	23.9634167841824
1999	26.5694419300027
2000	25.7583827680558
2001	25.2226866951229
2002	25.8546018348267
2003	25.1556752227903
2004	27.2875160327278
2005	26.2768754700489
2006	22.8883109960388
2007	23.0449642815856
2008	25.380611749054
2009	21.8748215770177
2010	23.9866365463318
2011	27.3659528452877
2012	26.4022341140294
2013	28.3321722043471
2014	34.5220651778387
2015	36.6993293508397
2016	35.5710732134397
2017	33.1505993031106
2018	31.1986897673002
2019	30.8320287701597
2020	32.1498074208935
2021	31.1231240199267
2022	31.5420498438107
2023	31.8159339149997