Year	% of GDP
1996	0.265009999275208
1997	0.349940001964569
1998	0.191860005259514
1999	0.224169999361038
2000	0.209250003099442
2002	0.238179996609688
2005	0.460310012102127
2006	0.363849997520447
2007	0.421590000391006
2008	0.374410003423691
2009	0.402390003204346
2010	0.328819990158081
2011	0.329620003700256
2012	0.308079987764359
2013	0.291180014610291
2014	0.317070007324219
2015	0.351090013980865
2016	0.373910009860992
2017	0.440519988536835
2018	0.505940020084381
2019	0.426670014858246
2020	0.446619987487793
2021	0.420349985361099