Year	% of GDP
1971	-0.15181470611305578
1972	0.698701019868114
1973	0.10644267281143382
1974	-0.027842364848101434
1975	0.31455019095605924
1976	0.2740287587054383
1977	0.2907833253853541
1978	-0.07248740508054011
1979	0.19179866938571108
1980	0.13448568864962632
1981	0.23912735027956056
1982	0.11408232755632819
1983	0.24265253756314548
1984	0.8167236775187192
1985	0.2078463196954219
1986	-0.452125281647074
1987	-0.2864824454013724
1988	0.32505481652035656
1989	0.2916585802378737
1990	0.2136429534728646
1991	0.04424224265508281
1992	-0.7727665495974021
1993	0.14410454368555217
1994	0.8366130589849025
1995	4.117231216497983
1996	0.978604387858807
1997	2.757051326997615
1998	0.3272445030759072
1999	0.9009411621769002
2000	2.037208496747987
2001	6.025897047258086
2002	-0.31654867472068127
2003	1.538330293587958
2004	1.558288218486406
2005	2.565530935462783
2006	2.147824306240783
2007	2.529738383700776
2008	2.7190508782585256
2009	6.344938442988123
2010	3.479525854185095
2011	4.285271761911627
2012	3.197567515368772
2013	2.325365107047441
2014	1.0039363903328593
2015	2.1024837081090166
2016	2.5415326068365016
2017	3.6493422896145886
2018	2.7373851306430703
2019	4.971522454351277
2020	3.0738032642040065
2021	3.314147827528085
2022	3.8096790198259964