Year	% of GDP
1970	-0.013758223401971048
1971	0.25778871683372834
1972	0.04521485787130748
1973	0.5196079831707742
1974	0.8376536633771291
1975	0.6755459204289087
1976	0.7920105403835136
1977	0.9424178306046367
1978	0.39204688925234255
1979	0.02242274829637254
1980	-0.2876676272261979
1981	0.42469776656584673
1982	0.037909291867650935
1983	0.2780780734467469
1984	0.02518878600942923
1985	0.03432348350545656
1986	0.3736700073586089
1987	0.8123522275416372
1988	2.16907026973743
1989	1.160495168323899
1990	1.0493327634751797
1991	1.0505145939971812
1992	0.37734394988247916
1993	1.9955984272795415
1994	2.174705330971751
1995	1.7461299796688214
1996	1.6027794002924884
1997	1.2985313118376527
1998	3.070111177319401
1999	2.1356799941890183
2000	1.7772245287306248
2001	0.9629854439349901
2002	2.098275045165883
2003	0.5652632434321023
2004	0.6231447779634542
2005	1.5490600924923132
2006	2.120918864792172
2007	1.8712124588770571
2008	0.7378005892152472
2009	1.1732482124642734
2010	0.5136980495176634
2011	0.8569630029690677
2012	1.2276300069867956
2013	1.3164263838147456
2014	1.9293752279783365
2015	1.8401801071530308
2016	2.598508034976456
2017	3.1223877840866816
2018	2.8683382607363828
2019	2.3011749859475743
2020	1.885863632111708
2021	3.040788553100473
2022	2.347509723336898