Year	% of GDP
1971	0.7639480717301269
1972	0.7727264809656266
1973	0.7588821256766866
1974	1.127455501268645
1975	2.214675829700644
1976	2.5495113150830204
1977	2.624818524633921
1978	2.356295555683319
1979	2.2635177499458035
1980	2.229689422930909
1981	3.2059330598614175
1982	3.8357030646810304
1983	2.418164932741776
1984	2.3628545546549384
1985	3.3029290255876314
1986	2.3511615242032784
1987	1.3804368210038651
1988	1.5327841440410244
1989	1.6714979451297574
1990	1.5112183329297084
1991	1.3474573498570517
1992	1.301236072780623
1993	0.9926889488834582
1994	1.036098188771208
1995	1.3730530688273554
1996	1.2209154051490942
1997	1.0007256082156055
1998	0.8041452025734661
1999	0.5474012196613177
2000	0.7201569469627142
2001	1.3581084325076347
2002	0.8601295216734979
2003	0.7916270983270207
2004	1.961077706207075
2005	1.3667524655018002
2006	1.3249771594137763
2007	1.6400052145537485
2008	3.3660540211522676
2009	1.1202141564322894
2010	1.7445950004377626
2011	2.0085433886155455
2012	1.386258755166371
2013	1.0955346156891346
2014	0.81361643023927
2015	0.6185115703684189
2016	0.7488061574635713
2017	0.9311084111255273
2018	1.0354073875842196
2019	0.7520849931578709
2020	0.6347805605694821
2021	1.0322496726641923