Year	% of GDP
1960	10.7977469263099
1961	11.810042509103
1962	10.2282145552805
1963	9.90251749915194
1964	9.40267697440415
1965	8.92375356887832
1966	9.7298918924369
1967	9.58187071682922
1968	12.1475430834622
1969	13.053375109778
1970	14.2059661257195
1971	17.4209750944231
1972	16.5548611815692
1973	15.6482608053113
1974	17.9466845483758
1975	15.3590039236442
1976	11.8332213213078
1977	15.269192224964
1978	17.1984341271811
1979	20.7231358480453
1980	21.7295078957851
1981	29.6977651151243
1982	31.3181100560577
1983	26.5588638231802
1984	24.0506119455824
1985	16.9285824693685
1986	16.5215522681063
1987	20.9234516099999
1988	20.0320597504097
1989	39.4377419896227
1990	15.5276981216118
1991	12.4655879980545
1992	15.2507520184031
1993	18.0123062130973
1994	19.9549452299565
1995	19.6796231471515
1996	19.8760428771292
1997	21.5569355901645
1998	23.5909907483988
1999	24.136100774893
2000	23.1674223158561
2001	20.1560327767269
2002	15.1156737475206
2003	10.6211819600196
2004	9.50128495325813
2005	10.4169307391323
2006	11.532388513893
2007	12.6122114252425
2008	11.8227697298621
2009	11.9992817487158
2010	12.3023140536838
2011	13.5403476956748
2012	14.6892294554807
2013	15.1861334101073
2014	13.4668970338583
2015	14.0812611092121
2016	13.2251856630607
2017	15.7212691624528
2018	15.3763265573184
2019	12.7789482484627
2020	13.4554773021172
2021	11.2417826660389
2022	10.6890682475873
2023	12.002478777381