Year	% of GDP
1978	4.34774017333984
1979	2.91519999504089
1981	2.20830011367798
1982	1.75490999221802
1983	2.64759993553162
1984	2.02923011779785
1985	1.73810994625092
1986	1.50957000255585
1993	3.36546993255615
1994	3.42482995986938
1995	2.2511100769043
1998	0
2008	3.3205578327179
2009	3.76504969596863
2010	3.7870135307312
2011	4.221519947052
2012	4.38721990585327
2013	4.34481000900269
2014	4.41258001327515
2015	4.32219982147217
2016	4.62773990631104
2017	4.32368993759155
2018	4.30003976821899
2019	4.45403003692627
2020	4.00860977172852
2021	2.84528303146362
2022	2.61520981788635