Year	% of GDP
1997	1.5251820739085253
1998	2.0971825305083587
1999	1.905808631808196
2000	2.3775976261929626
2001	3.1335666674727705
2002	3.3536173691442377
2003	3.615686872820779
2004	4.18496090901999
2005	1.8864519461139324
2006	2.486053125637233
2007	3.044278860317023
2008	2.207729029780945
2009	2.736601664358428
2010	4.706016049562366
2011	4.294298285719464
2012	3.7520053376372346
2013	5.244773049993648
2014	6.14365694745057
2015	3.1637688797636327
2016	4.55278709644197
2017	4.14387353810886
2018	3.7111367027461526
2019	4.928345237769509
2020	3.2266901159706762
2021	2.276858752920381
2022	2.4865136118521813