Year	% of GDP
1970	1.722560787340965
1971	1.1389620867100283
1972	0.9953317201009431
1973	1.670130356037363
1974	2.0816797527469353
1975	0.8508599183313976
1976	0.8459301811372986
1977	0.8993895206789069
1978	0.470742467403324
1979	1.7626994806847416
1980	4.040901539088573
1981	1.6594103289096584
1982	1.218398639200014
1983	1.8095958892946113
1984	0.4460299454176956
1985	1.2694738918542026
1986	1.4040403977211855
1987	1.6019387075088602
1988	2.0347375422759817
1989	1.722437541147975
1990	1.1071769762937202
1991	1.1289061940950917
1992	0.9530135569992146
1993	0.9608345078405681
1994	1.1197978127994512
1995	0.3849878971048768
1996	0.5559758055001472
1997	0.3736833619709744
1998	0.27310237271645377
1999	0.2886069498936821
2000	0.4229240843099818
2001	0.4376275072560138
2002	0.4858151311491091
2003	0.19938124795573958
2004	0.324798345455701
2005	0.5569078569917886
2006	0.9574734628652091
2007	1.123231248582664
2008	1.138052463233384
2009	0.8502546179751672
2010	1.3548444508386144
2011	1.6570386212157096
2012	1.3320375276093743
2013	1.1580127509520408
2014	0.8370487018943608
2015	0.47848569409204017
2016	0.647051858968131
2017	0.8462705672111703
2018	0.7507951493413081
2019	0.7514088296611039
2020	0.9523176547163982
2021	3.1153532896897493