Year	% of GDP
1977	3.359778245077423
1978	3.7485800833017793
1979	3.7177234013789375
1980	3.9570457786850866
1981	3.7464048398294163
1982	3.872259931011461
1983	3.674687932036306
1984	3.517070446135586
1985	3.1918572309172646
1986	2.810730067840916
1987	2.5959187160293444
1988	2.2976294442293668
1989	2.3158922613719586
1990	2.4967697509419953
1991	2.2473065370181327
1992	2.0369874028410613
1993	1.8039431381407929
1994	1.6745277428835532
1995	1.684062432360934
1996	1.5968586387434556
1997	1.6057613749836095
1998	1.6244911740981822
1999	1.6441404501105994
2000	1.6002533426006276
2001	1.7043080416496084
2002	1.7763974642926375
2003	1.866004032069014
2004	1.8118230476884818
2005	1.7499829988698294
2006	1.7681086947874463
2007	1.631093878791048
2008	1.536848212757053
2009	2.0139445423946145
2010	2.094548525229011
2011	2.9113108124904254
2012	2.596289898107552
2013	2.733712433459545
2014	2.7693911100127857
2015	2.801176731222018
2016	2.875562196525756
2017	2.9667812419118023
2018	3.00838361795133
2019	3.0136633429574218
2020	2.9129858367352295
2021	2.776332253237397
2022	2.5840392791420776
2023	2.5003051374211425