Year	% of GDP
1970	7.863504520328832
1971	4.593448229406443
1972	8.208531274090438
1973	8.255159155679431
1974	8.64913220254217
1975	1.226809465106134
1976	1.3527065305677055
1977	0.5664538975432387
1978	-0.182867755942507
1979	0.612916632974476
1980	2.388453844200616
1981	3.9917466259274037
1982	1.7656635717243514
1983	2.5117177592706557
1984	-0.1726602809647011
1985	0.8034658300483414
1986	-0.0998749977347214
1987	0.039590271174136375
1988	0.07766315582922567
1989	-1.22799787397092
1990	1.530061825505792
1991	2.5927531780192794
1992	2.870842314132117
1993	2.1527951082984043
1994	2.9463238504302467
1995	4.182276906763883
1996	3.1185737123387383
1997	3.7006043495509924
1998	3.3919004701028994
1999	3.3107769281543544
2000	4.1878511394632785
2001	4.198209162777192
2002	4.116765819273174
2003	4.357956747489742
2004	5.490355146258356
2005	7.29021766842518
2006	7.80564971080665
2007	7.840826926945345
2008	8.328642912937015
2009	6.363358252612589
2010	6.514040495996135
2011	6.8873943008669
2012	7.148600374595807
2013	5.097801861637957
2014	5.423498169244625
2015	5.283812822309151
2016	5.911948530930163
2017	4.243530557044385
2018	7.615090612392282
2019	8.461286988283911
2020	7.986359699324787
2021	9.854347642959965
2022	3.9204513012465845