Year	% of GDP
1965	9.139308264869165
1966	11.08902645689203
1967	12.199699720652522
1968	9.74148480410249
1969	9.239898274959977
1970	10.29082453876794
1971	10.339296211182283
1972	11.092040184288816
1973	10.159184719431005
1974	10.230046655982896
1975	9.394847071588087
1976	9.407540029814783
1977	7.640332284726302
1978	7.684540098362347
1979	8.128952708092843
1990	17.450507605483264
1991	16.57763403823604
1992	16.583186992680158
1993	15.432326055211426
1994	14.741790004957295
1995	15.049245170754826
1996	9.802850067021676
1997	11.226710485998007
1998	10.410681831348603
1999	10.870263977710302
2000	11.154471127864896
2001	10.767258503353808
2002	9.797021792897045
2003	8.889951221395673
2004	8.79290482659688
2005	10.28226527471357
2006	10.028878605608215
2007	10.310609281788162
2008	10.204023647777746
2009	9.627693495012814
2010	9.001911196334406
2011	9.221355750125095
2012	10.318251527279873
2013	11.85018556035654
2014	12.20069981279989
2015	11.430599016841203
2016	12.54303429905227
2017	11.2836181003932
2018	11.290984342232596
2019	12.319968428731585
2020	12.051943398124756
2021	13.397081501932067
2022	14.373560777250201
2023	14.92476029027075