Year	% of GDP
1997	1.79807996749878
1998	1.95098996162415
1999	2.23505997657776
2000	2.5720100402832
2001	2.83989000320435
2002	2.82119989395142
2003	2.70549988746643
2005	2.67968988418579
2006	2.8526599407196
2007	2.53293991088867
2008	2.46413993835449
2009	2.59713006019592
2011	2.40367007255554
2013	1.69237995147705
2014	1.93615996837616
2015	2.18131995201111
2016	2.11011004447937
2017	2.08413004875183
2018	2.00080990791321
2019	2.34165000915527
2020	2.49068999290466
2021	2.805419921875