Year	% of GDP
1980	29.721948833809396
1981	23.857035547042575
1982	21.729845897075194
1983	20.873374095472442
1984	21.316902054987697
1985	23.033356642385165
1986	24.357237860492802
1987	25.37126675713104
1988	24.523063367977628
1989	22.877544407776035
1990	20.925422821411427
1991	18.883846584282786
1992	21.879224938075215
1993	22.886119580896526
1994	23.949255537660513
1995	24.620310965507468
1996	25.743872747726982
1997	24.77531849402356
1998	25.128572422197553
1999	25.0309666754475
2000	25.890797988666076
2001	27.542938520172417
2002	28.072928079835847
2003	25.898995412765284
2004	25.997674618136124
2005	27.811574637644863
2006	29.717619939836066
2007	32.075779431582205
2008	35.58527498541442
2009	27.38410350665762
2010	29.580293655658057
2011	31.4156769379713
2012	29.967039525785193
2013	29.167450245820838
2014	28.572586323584943
2015	24.046023500311076
2016	23.249928822499534
2017	23.82489684600549
2018	25.315920737735357
2019	23.903123628544225
2020	22.036160253715586
2021	25.922405764071538
2022	27.595354469768935
2023	24.50315960022757