Year	% of GDP
1979	9.3617616074523
1980	8.00580375439012
1981	7.449329809808377
1982	8.652544564093388
1983	6.765490396613478
1984	6.69840826955741
1985	7.234332900981856
1986	8.332177495962013
1987	8.481678308612548
1988	8.547890539350611
1989	6.274301591133077
1990	6.64233365566407
1991	6.502021944653895
1992	6.7174687102995385
1993	6.2247406509522065
1994	5.785839529733351
1995	5.611668283846106
1996	5.411774909929489
1997	5.609836183439487
1998	5.442234831400408
1999	5.961232079605685
2000	6.016800121639897
2001	6.11657185490307
2002	6.782912373463994
2003	7.070243246200774
2004	6.921029068893652
2005	6.728386173104495
2006	6.4005384537154315
2007	6.48373933099221
2008	6.496384420858916
2009	6.389376506636146
2010	6.051709003746938
2011	6.25145735057359
2012	6.6245158699855535
2013	6.799821331638264
2014	6.903638407108729
2015	7.885764351009142
2016	8.13844535879379
2017	7.873341773234158
2018	8.33589810869897
2019	8.461984781924466
2020	6.920909900957199
2021	7.535992565432662
2022	8.783330769604738
2023	7.982592024942921