Year	% of GDP
1970	3.36681008338928
1971	2.89877009391785
1974	3.83513998985291
1975	3.71161007881165
1976	3.91951990127563
1978	3.78035998344421
1979	4.16373014450073
1983	4.48805999755859
1984	4.77456998825073
1985	4.68980979919434
1986	4.65490007400513
1988	4.59277009963989
1993	4.73389005661011
1994	4.43331003189087
1995	4.31864976882935
1996	4.44763994216919
1998	4.45031023025513
1999	4.51084995269775
2000	4.29107999801636
2001	4.65009021759033
2002	4.43240976333618
2003	4.54179000854492
2004	4.38520002365112
2005	4.23829984664917
2006	4.52545022964478
2007	4.10503005981445
2008	4.38794994354248
2009	4.52371978759766
2010	4.33411979675293
2011	4.11568021774292
2012	4.05601978302002
2013	4.14367008209229
2014	4.06127977371216
2015	4.07362985610962
2016	3.81578993797302
2017	4.04493999481201
2018	4.25614023208618
2019	4.09527015686035
2020	4.44194984436035
2021	4.01999998092651