Year	% of GDP
1970	14.917634828507879
1971	9.532612469480291
1972	15.30377390421391
1973	15.240721418989416
1974	22.681846932321314
1975	2.9486749245219723
1976	2.2737891294190935
1977	4.403927068723703
1978	-0.13214800576645844
1979	0.8422529529520132
1980	0.30704710551935893
1981	2.4114966701717493
1982	0.17740606982196033
1983	-0.3462603878116343
1984	-0.24006663073832737
1985	-1.3013315508825591
1986	-0.5338725985844287
1987	0.397936639570252
1988	1.3023883033464638
1989	0.8295231874591771
1990	-0.5369551484523057
1991	-0.041785057663379574
1992	0.00964940495336121
1993	0.8829236739974126
1994	0.7241485118134396
1995	3.1175269757946924
1996	2.432806871709615
1997	3.316299136498872
1998	2.1497917526437025
1999	1.9430313110450854
2000	3.0985071448293624
2001	1.2307296494398179
2002	1.7203833733431217
2003	2.14428489451629
2004	3.021438297393016
2005	5.727971167727374
2006	6.9476013671346735
2007	6.718093411964582
2008	8.17172902365571
2009	6.651599485471792
2010	8.636992163046665
2011	6.619575093466529
2012	4.908082645399002
2013	3.6769849362242444
2014	2.289731538987252
2015	0.651786981982368
2016	3.3239396549199247
2017	2.48913165410064
2018	3.8951528181301778
2019	3.704839403136092
2020	4.364240523423852
2021	3.369409345856626
2022	4.04154829632738