Year	% of GDP
1996	0.347359985113144
1997	0.401719987392426
1998	0.501240015029907
1999	0.458319991827011
2000	0.478650003671646
2001	0.565299987792969
2002	0.564450025558472
2003	0.582430005073547
2004	0.602310001850128
2005	0.549199998378754
2006	0.441390007734299
2007	0.436150014400482
2008	0.500609993934631
2009	0.614849984645844
2010	0.6076700091362
2011	0.271919995546341
2012	0.407160013914108
2013	0.474669992923737
2014	0.415960013866425
2015	0.428539991378784
2016	0.34222999215126
2017	0.430660009384155
2018	0.536909997463226
2019	0.553080022335052
2020	0.518379986286163
2021	0.322820007801056