Year	% of GDP
1960	-6.01374570446734
1961	-2.80673616680031
1962	-5.27522935779814
1963	-5.7960381511372
1964	-1.078360891445
1965	0.183038438071995
1966	1.61290322580645
1967	2.66120777891505
1968	0.783162016642208
1969	2.25733634311512
1970	10.8219743907476
1971	7.14756258234521
1972	9.73886328725038
1973	12.4450549450549
1974	16.3813651137595
1975	16.9529922597697
1976	17.8267973856209
1977	20.0549450549451
1978	20.5195453977769
1979	12.6084441873916
1980	10.765098000199
1981	11.8310621785037
1982	15.0770712909441
1983	15.22615276452
1984	14.8237035740719
1985	12.8849812329683
1986	10.3318353080031
1987	14.9133251693391
1988	12.1972583748302
1989	8.8191014269883
1990	13.4017744979846
1991	14.1999835815582
1992	0.685003557647876
1993	-0.920438510395153
1994	-3.01412819715579
1995	-0.327792047465457
1996	3.27617024336548
1997	-0.630083028708094
1998	8.13016624645419
1999	-0.62141245659225
2000	3.83337199730133
2001	3.76057526590311
2002	2.12403293573712
2003	2.4208040284896
2004	-0.0150568963898937
2005	-4.11091959565536
2006	0.92174344745971
2007	13.2478534365083
2008	6.57686894745781
2009	12.8371197791992
2010	10.7497756020133
2011	5.19129258755913
2012	-3.36778201367492
2013	6.0710054046326
2014	6.43379333633764
2015	4.60862013495833
2016	-1.75246801163818
2017	6.21230668061952