Year	% of GDP
1978	8.437137031183587
1979	7.791599883890195
1980	7.680879467162604
1981	6.94382334082339
1982	6.533548844758359
1983	6.03295396051978
1984	5.970808373933061
1985	5.905956710321572
1986	5.890936291665175
1987	6.311706737512526
1988	6.726594503078478
1989	6.377808564357165
1990	6.814847026641728
1991	7.158939269112539
1992	7.93027652590839
1993	8.114926872191749
1994	7.932016771655261
1995	8.125281858017624
1996	8.000181461585608
1997	8.917011501403092
1998	8.68535573596612
1999	9.138408387628942
2000	9.31117156365635
2001	9.63174622349813
2002	10.253955497387123
2003	9.558936272073256
2004	10.164895774040007
2005	9.935065173313548
2006	9.711056413334033
2007	9.813069721586158
2008	9.720313929842124
2009	8.997935716910707
2010	8.736285928771329
2011	8.496410971935306
2012	8.522754001558773
2013	8.62795507008142
2014	8.865828413363925
2015	8.947997381012371
2016	8.85026918034322
2017	8.829905705249157
2018	9.07184894668711
2019	9.048770721180018
2020	7.020512717188193
2021	7.268820750382302
2022	8.307614798638918
2023	8.457251458239028