Year	% of GDP
1997	1.83241697609037
1998	1.728914886878774
1999	1.6537456897022698
2000	1.6050252152378615
2001	1.5646675228607916
2002	1.4782627352609945
2003	1.5051737279704038
2004	1.5559666751655696
2005	1.3966556979389155
2006	1.3043242429981674
2007	1.3289245768891111
2008	1.3277792776941437
2009	1.2360910885225906
2010	1.3071012973671874
2011	1.4054042303872378
2012	1.3829548188680543
2013	1.4675364742000112
2014	1.3720204547550368
2015	1.2902758978495674
2016	1.2465463023874417
2017	1.2918647649253399
2018	1.2304832319443206
2019	1.176687720533738
2020	1.2445119661543516
2021	1.2565910363310033