Year	% of GDP
1974	0.4520903469165045
1990	0.5560092299214949
1991	0.2496938274929423
1995	0.017212238171119505
1996	0.461424354408845
1997	-0.19873430284151283
1999	0.2630216736456923
2002	0.4336162576795898
2003	0.5169694487035956
2004	1.2048583923573382
2005	0.721867615816523
2006	0.649361841531609
2007	5.88132297381915
2008	0.23863062320184059
2009	1.3745290483950088
2010	4.498094806682337
2011	1.6065286599185535
2012	1.256910243924626
2013	1.0680551865475312
2014	1.1439546289765605
2015	0.2993591791924554
2016	0.5116461976417456
2017	-0.6388063408031583
2018	0.10255942683974004
2019	0.4756170704890582
2020	-0.11340154239813915
2021	0.24498358929326403
2022	0.28990465819137606