Year	% of GDP
1978	8.129910081208767
1979	17.910134469449613
1980	26.120984350838516
1981	25.047287983243976
1982	39.25060044993696
1983	36.13413772523788
1984	40.48752461131302
1985	24.87331120733963
1986	18.349949213733826
1987	24.995917994675462
1988	5.351777056359166
1989	14.599500740259252
1990	31.77735958007008
1991	17.57838974881215
1992	32.33210207307866
1993	21.211464255284117
1994	28.807953298890016
1995	-2.3017496682331178
1996	-0.2092482887176164
1997	9.274813011675112
1998	6.0243474479334695
1999	17.682095742889267
2000	36.172629740432214
2001	22.025235322167877
2002	23.54827370397944
2003	30.741573447338986
2004	17.045043350692374
2005	32.69808848124979
2006	42.004904226197446
2007	33.34847079880887
2008	43.49245367008022
2009	40.19205721454933
2010	54.04430633716642
2011	50.08982622789168
2012	57.50172585005247
2013	57.85017644854737
2014	56.63817461953947
2015	39.54348730151152
2016	24.86954741312458
2019	37.57940264717465
2020	36.29299151658119
2021	38.85055026820575