Year	% of GDP
1972	0.0710226773005083
1973	0.22573372503058878
1974	0.5703920880515728
1975	1.8811673716157347
1976	-0.44076119488087456
1977	0.5355948025482676
1978	2.1685927750641283
1979	0.8061172016351312
1980	0.8652240066218506
1981	3.212033482381296
1982	1.2695788502640035
1983	0.7085316572847783
1984	1.5600020774387238
1985	0.4996179080996275
1986	0.355420633365062
1987	0.5846264311640935
1988	0.3780474441328522
1989	-0.031975499373875456
1990	0.9049515242139319
1991	-0.2736215400838855
1992	0.7667830168367709
1993	-0.5983969895510833
1994	0.045776079316655956
1995	0.19781341158418925
1996	0.22395960583109373
1997	4.981215813754301
1998	3.918143249313708
1999	1.9382863471955412
2000	10.79400536782969
2001	3.0485051422707166
2002	2.486017341001514
2003	5.3647267143469834
2004	8.209222706991808
2005	15.763646141435894
2006	23.537291342713136
2007	15.324826260995916
2008	12.475307504909368
2009	9.834178744765513
2010	6.222475669739118
2011	5.033358726884925
2012	4.894806886823207
2013	5.649771687145909
2014	5.912048902058894
2015	4.147202291749402
2016	3.8928514286897054
2017	4.878141331679766
2018	2.201776865755759
2019	1.6397126309459762
2020	1.7397597829419225
2021	1.3431606204922608
2022	2.337026144392251