Year	% of GDP
1980	7.799062562474841
1981	9.78004868506105
1982	10.7334590596107
1983	3.2813791019918868
1984	2.3236749386456603
1985	10.491306977063239
1986	12.222214605375823
1987	13.163674930847202
1988	15.692739205369556
1989	9.686383186661017
1990	18.42535925039172
1991	-9.353515364331386
1992	-10.870210571929631
1993	2.7661728455921417
1994	6.339494153738656
1995	10.128580591192414
1996	10.299945487316975
1997	8.417768549631639
1998	0.6316694002607335
1999	13.985918134016394
2000	22.552198729329596
2001	20.195256366572348
2002	13.883498375453271
2003	16.03456184124895
2004	16.472981882753626
2005	19.474571302945918
2006	22.173707455959434
2007	21.574007891825207
2008	19.272185615425197
2009	18.967462320734345
2010	18.602240957200884
2011	24.682070240295747
2012	18.406399036823178
2013	17.737052548296504
2014	16.533665557306247
2015	11.255780411028665
2016	8.776971891093966
2017	8.484686496051967
2018	7.69898928867474
2019	11.271086550908253
2020	5.639201838387481
2021	19.48953937508377