Year	% of GDP
1960	-8.224811514736121
1961	-0.9102322661644695
1962	11.759425493716337
1963	16.793893129770993
1964	3.5938903863432166
1965	-2.4
1966	-5.169753086419753
1967	-2.3512814483893725
1968	3.0903155603917365
1969	3.810669875651825
1970	-0.5414488424197162
1971	3.7227441942917925
1972	-1.3015184381778742
1973	-16.70285359801489
1974	1.927307007436891
1975	-0.02526315789473684
1976	-24.92738315289148
1977	-15.559704810171601
1978	-0.01577660329731009
1979	-9.41859588266345
1980	-12.354118037135278
1981	-23.387609479499655
1982	-17.30290456431535
1983	-18.69891008174387
1984	-7.1978348047002525
1985	-13.794871794871794
1986	-6.907834419715872
1987	-11.19424428218002
1988	-4.301599910623487
1989	-7.192644173822507
1990	-17.152889262159817
1991	-17.980031565980596
1992	-23.476209183891815
1993	-16.72425377173397
1994	-12.16389327490559
1995	-10.906033586775713
1996	-6.094913863763002
1997	-9.81654055486493
1998	-11.976921716456829
1999	-8.04237134894913
2000	-14.607424051067087
2001	-13.828434047605842
2002	-12.118707513334444
2003	-9.809101718680587
2004	-9.59994053619835
2005	-25.10502016703766