Year	% of GDP
2000	0.6381197489408003
2001	0.6647477254608605
2002	0.7104341727365677
2003	0.761578279629094
2004	0.7879737731022792
2005	0.8107951260611177
2006	0.8510960289876721
2007	0.8563281698591876
2008	0.9226117206872312
2009	1.000781263602926
2010	1.0652915919152752
2011	1.0819896135841969
2012	1.1790060533550841
2013	1.1590311975946503
2014	1.285682946810874
2015	1.3285988268673488
2016	1.3658169108615232
2017	1.320588378024244
2018	1.3929597480267384
2019	1.427528858793536
2020	1.6064535716128527
2021	1.8604892159431226