Year	% of GDP
1976	9.089547288707092
1977	12.508294774856111
1978	13.957486731996264
1979	11.792928279782608
1980	13.404155151906478
1981	14.063901166483456
1982	14.248246130403968
1983	12.36740152219224
1984	11.270245242488674
1985	9.444384056680097
1986	8.981716148614664
1987	9.02461404109195
1988	7.775539788903297
1989	7.444452499007852
1990	7.4403462641793165
1991	7.079361665882413
1992	7.137784099231537
1993	7.43044254130559
1994	7.905032990635538
1995	8.867911158791712
1996	8.943812953844029
1997	10.136180932402809
1998	13.560026961691149
1999	11.137595218110317
2000	11.44756327531972
2001	11.653203358187369
2002	10.820698571841445
2003	10.867295523292709
2004	12.055288210407475
2005	11.772325797324932
2006	12.064390422060827
2007	13.292139484689816
2008	17.988588046527667
2009	16.359089885764913
2010	15.727425527018069
2011	15.413509346388734
2012	16.535086477675964
2013	15.538602013993561
2014	15.297841376405541
2015	14.29859704425229
2016	13.800052297861257
2017	13.316501623706992
2018	13.720182930568795
2019	14.201274270327938
2020	11.789818594024235
2021	13.483247412556542
2022	16.161301838712593
2023	16.034163111212507