Year	% of GDP
1996	3.51256990432739
1999	3.89257001876831
2000	3.4301700592041
2001	3.421469926834105
2002	3.38608002662659
2003	3.67853999137878
2004	3.44770002365112
2005	3.77192997932434
2006	3.90346002578735
2007	3.97731995582581
2008	4.10174989700317
2009	4.321614980697635
2010	3.85796999931335
2011	4.03038001060486
2012	3.90168619155884
2013	4.20151996612549
2014	4.2413165569305455
2015	4.32219982147217
2016	4.29491496086121
2017	4.199480056762695
2018	4.17266488075256
2019	3.95437002182007
2020	4.440210103988649
2021	4.38600015640259
2022	4.69618535041809