Year	% of GDP
1996	2.109821902528196
1997	2.1322358639244126
1998	2.1350199119560997
1999	2.20370805865764
2000	2.2478079518394325
2001	2.2794309888629662
2002	2.223914116346688
2003	2.216634553011957
2004	2.1677804925855066
2005	2.180828635467092
2006	2.2058483715122708
2007	2.207581174104857
2008	2.287268562236021
2009	2.3654973425101047
2010	2.328350803831115
2011	2.3543846846831493
2012	2.3720467269510888
2013	2.363633783198636
2014	2.4426267840215834
2015	2.472622607469875
2016	2.524863632683215
2017	2.5523716598913673
2018	2.658193368321815
2019	2.730209069799917
2020	2.951443675457394
2021	2.948070708956209