Year	% of GDP
1974	9.25035252348394
1975	10.576290102867542
1976	11.933151378344721
1977	12.026411326524473
1978	10.982377624200424
1979	13.181289992183318
1980	12.737358785200426
1981	10.77691096047409
1982	12.626546199315026
1983	10.763353186968892
1984	10.645105521623032
1985	11.524567702163136
1986	9.56794009565046
1987	11.064521288659607
1988	10.905771009547585
1989	10.732921060365538
1990	7.721708142434602
1991	7.69322053801702
1992	7.641123371043952
1993	7.274500422715178
1994	9.263776946486542
1995	8.036488044828877
1996	8.603119523140402
1997	8.462891296345363
1998	7.147680255483032
1999	6.940910734443434
2000	7.617684947509527
2001	8.391671166222903
2002	7.349107072324494
2003	7.586698849142974
2004	9.494484431406425
2005	8.394645072515074
2006	8.834957514213139
2007	7.930938189492158
2008	10.075797368192594
2009	11.410812914564115
2010	12.287124565700957
2011	10.724894854084452
2012	9.602476424926905
2013	11.019583284568176
2014	12.21538360882545
2015	12.439842095406512
2016	9.705514095368867
2017	10.774712665711302
2018	10.384980494300843
2019	10.315277625010255
2020	9.44650684529809
2021	9.967806881917426
2022	10.378678785637664