Year	% of GDP
1998	3.645864963531495
1999	3.80062007904053
2000	3.94893002510071
2001	4.04286015033722
2002	3.883855104446415
2003	3.53504991531372
2004	3.97447991371155
2005	4.47908020019531
2006	4.372174978256226
2007	4.46260023117065
2008	4.84440994262695
2009	5.46355009078979
2010	4.926769971847535
2011	4.916270017623905
2012	5.224464893341065
2013	5.00464010238647
2014	5.25747013092041
2015	4.99870014190674
2016	4.47721004486084
2017	4.526865005493165
2018	4.4615499973297155
2019	4.555345058441166
2020	4.603859901428225
2021	3.97350001335144
2022	3.917050004005435