Year	% of GDP
1997	1.59350001811981
1999	1.60436999797821
2001	1.56019997596741
2002	1.62644994258881
2003	1.67571997642517
2004	1.53974997997284
2005	1.47714996337891
2006	1.44972002506256
2007	1.5579400062561
2008	1.54556000232697
2009	1.71677994728088
2010	1.6411999464035
2011	1.61714005470276
2012	1.61053001880646
2013	1.64216005802155
2014	1.70369005203247
2015	1.92349994182587
2016	2.032870054245
2017	2.08167004585266
2018	2.03482007980347
2019	2.13599991798401
2020	2.24435997009277
2021	1.93798005580902