Year	% of GDP
1975	7.75910892958278
1976	8.4640522875817
1977	9.3956043956044
1978	12.2517796927688
1979	7.53036437246964
1980	4.74579643816536
1981	4.9273531269741
1982	6.14964675658317
1983	5.39318061191236
1984	3.27984088554767
1985	5.06452773921538
1986	3.05960325026102
1987	7.62695648846198
1988	10.2337030330466
1989	12.9415252937771
1990	12.4217294414204
1991	8.67707037691721
1992	6.91372886267741
1993	4.60039912027294
1994	11.6293933648553
1995	5.16426243818582
1996	3.22157909008883
1997	2.58295101045621
1998	2.34063997167024
1999	2.35624157127023
2000	2.43955218180302
2001	3.61212392772076
2002	6.06028735517014
2003	5.55947625086587
2004	5.36519055410814
2005	9.7683583935118
2006	11.6608836332959
2007	9.66801737656263
2008	14.3309531738358
2009	17.2878149019723
2010	13.6
2011	5.89836149561418
2012	6.29762610307311
2013	7.41214870290971
2014	7.42684202508031
2015	6.75834745456635
2016	6.37751959907202
2017	6.5621778419468