Year	% of GDP
1970	5.101059761826724
1971	5.074977890511871
1972	4.587188051975306
1973	4.445539067791392
1974	4.3935655909402245
1975	4.115822611711444
1976	4.403958820919952
1977	4.434578762535752
1978	4.2290076961871685
1979	3.780099380451709
1980	3.6260639250468927
1981	3.6193231473947507
1982	3.4187843937426576
1983	2.9595891979886892
1984	3.070963461971308
1985	2.859520414223278
1986	3.128651754904522
1987	3.1965397858472704
1988	3.085904795176514
1989	2.9051586428010996
1990	2.984019704985324
1991	2.910692113653307
1992	2.627743689836218
1993	2.609419441875799
1994	2.603645393327553
1995	2.589556221434519
1996	2.2271379158638895
1997	2.0617870222720662
1998	2.2632452308747313
1999	2.050592871643309
2000	1.7841381668402763
2001	1.5447677550634835
2002	1.4738403408891119
2003	1.2565151669083396
2004	1.3355904487554826
2005	1.3595141201690304
2006	1.3655623179950658
2007	1.2002928597637292
2008	1.0825529577996555
2009	1.2360885219238993
2010	1.5247849522002985
2011	1.3048372396597923
2012	1.0772751134564857
2013	1.2530356741259443
2014	1.3834313373243392
2015	1.4818302955450209
2016	2.033898849018063
2017	1.9187789243968665
2018	1.811199019398694
2019	1.7824610216970718
2020	1.8439294251894007
2021	1.5988691771445938
2022	1.654044451919085
2023	2.116155962624782