Year	% of GDP
1976	5.94479990005493
1977	6.51715993881226
1991	6.63870000839233
1999	4.34123992919922
2000	4.71585988998413
2001	6.05536985397339
2002	5.88062000274658
2003	6.24569988250732
2004	6.02428007125854
2005	5.66965007781982
2007	5.22044992446899
2008	4.92259979248047
2009	5.11626005172729
2010	6.05418014526367
2012	5.26250982284546
2013	5.14889001846313
2014	6.14317989349365
2015	5.17700004577637
2016	4.69766998291016
2017	4.36384010314941
2018	5.13299989700317
2019	4.11122989654541
2020	4.20217990875244
2021	4.97599983215332
2022	4.50875997543335
2023	5.12599992752075