Year	% of GDP
1965	7.207207207207207
1966	6.622517652734711
1967	9.131738023952096
1968	7.956104813139969
1969	7.134231633709747
1970	6.815642052370491
1971	7.136061845861084
1972	7.7419345622119815
1973	6.641837368094351
1974	3.6588646758138283
1975	4.260380622837371
1976	3.865943540536782
1977	4.723270066647348
1978	5.971810089020772
1979	5.010859447719516
1980	4.55651404556514
1981	4.030490709861839
1982	4.289680376818908
1983	4.480382264180144
1984	5.372060146510731
1985	7.249583472175941
1986	9.322982947314838
1987	8.478150659800187
1988	7.602661754764503
1989	6.402096593036316
1990	5.584351474762434
1991	6.172414268196911
1992	6.194857660140786
1993	6.291970421467951
1994	4.731037061804561
1995	4.524886877828054
1996	4.061384235100247
1997	4.396770769676112
1998	5.610586011342155
1999	4.72657610588645
2000	3.724848955157696
2001	2.541160328217127
2002	2.674539273379726
2003	2.6673385879484224
2004	2.7817232421857843
2005	12.929790842462785
2006	11.467838726382205
2007	12.78163050426741
2008	14.22278353570473
2009	19.024373071899507
2010	17.080461110284755
2011	19.152800750760253
2012	16.501405643465354
2013	17.162413959691293
2014	17.39340586688099
2015	16.68703304182487
2016	17.456006771993962
2017	17.62241866895374
2018	18.94155761352826
2019	18.802568830472648
2020	18.429415353825558
2021	23.58710377481454
2022	23.124359425870487
2023	21.59712511446193