Year	% of GDP
1972	2.3628048780487805
1973	2.2823606129768503
1974	3.036597428288823
1975	2.528977871443625
1976	2.076768834144944
1977	2.0392507830978714
1978	1.940214326001128
1979	1.5945110166215692
1980	1.5652246118076891
1981	1.5207310420076379
1982	1.546205316776177
1983	1.5220741301468004
1984	1.450281201388058
1985	1.7616945428920807
1986	1.440822735665108
1987	1.4273011590114675
1988	1.184823987339065
2002	2.1803544876868792
2003	1.6246778591299773
2004	1.793800425727392
2005	2.0793085671148974
2006	2.1377409827678426
2007	2.035109523069753
2008	1.9819857871450746
2009	2.0756875213624366
2010	2.0160419255377686
2011	1.6935780294005633
2012	1.6651284078345934
2013	1.5929232531127724
2014	1.7980721743114312
2015	1.8929259507126512
2016	1.94543747032067