Year	% of GDP
1965	44.592790387182916
1966	41.33489461358314
1967	31.077981651376145
1968	35.646687697160885
1969	34.580384226491404
1970	35.70106206762155
1971	47.6841835058752
1972	47.93715846994536
1973	49.766224050869646
1974	71.1172323922694
1975	54.45942201148776
1976	45.37854259447352
1977	28.583419431209258
1978	30.67326407616725
1979	49.153486919310126
1980	44.051152459600765
1981	31.02006982678949
1982	2.1409140621320306
1983	9.777199910294176
1984	15.471854388260295
1985	10.930337336471348
1986	-1.8259325600191543
1987	15.417123257805274
1988	4.624814740955012
1989	11.031933499504865
1990	-13.133102200783842
1991	-108.80887624796716
1992	-13.747532588217068
1993	3.4853352285427928
1994	8.52303422180356
1995	10.389578377845424
1996	13.097750580649267
1997	13.262080875883866
1998	-7.234553848099664
1999	6.49966738279333
2000	26.326024390033105
2001	15.766355140186917
2002	8.006902502157033
2003	17.62784568801166
2004	24.536585087373762
2005	35.7094417035417
2006	41.37837425134461
2007	35.09757340257699
2008	40.83564278466827
2009	30.05620372374263
2010	36.31900088036776
2011	47.3188572186491
2012	48.452229960217046
2013	44.11631137130032
2014	36.97530124517741
2015	8.832924499606639
2016	-0.8954554468345094
2017	4.552584732549183
2018	11.87553140793985
2019	8.252168332183967