Year	% of GDP
1972	2.617811644404023
1973	3.796262747513928
1974	2.8327433435483775
1975	2.70999326201334
1976	1.5157956760037707
1977	2.133394291792784
1978	1.6373432922964688
1979	1.5952352460121106
1980	1.8806983820261205
1981	1.9275497304065699
1982	2.0403139886941712
1983	1.925518734907268
1984	1.8605548557683909
1985	1.9127062844160578
1986	1.4487446573882006
1987	1.2382063213118755
1988	1.3036468346677839
1989	1.1684823258680719
1990	1.5979416148216667
1991	1.625689695560063
1992	1.3922596386451116
1993	1.75703379830595
1994	1.7507223035702486
1995	1.4832264240559905
1996	1.5959801234693476
1997	1.0668271767175863
1998	1.679859501141257
1999	1.7813390240961469
2000	1.5306640554382533
2001	1.9253842239012746
2002	1.7325952499783137
2003	2.0238305199627615
2004	1.711394599693283
2005	1.2590374532449609
2006	1.2723766390272122
2007	1.6201917412074773
2008	1.941286815608329
2009	1.9338417287401752
2010	1.397225693550764
2011	0.7481842402517377
2012	0.8099141003773359
2013	1.5192242098233621
2014	1.7625400903324908
2015	1.796763955729426
2016	1.7381086640279684