Year	% of GDP
1996	1.7400146043540177
1997	1.7138243804872983
1998	1.7410362093220966
1999	1.763881716712452
2000	1.8065686413726196
2001	1.7947531280630582
2002	1.8362106107751186
2003	1.8031222088959988
2004	1.7809894006136768
2005	1.7771510344354298
2006	1.7981144010118695
2007	1.803657111517363
2008	1.8872099757708733
2009	1.9833423425063026
2010	1.9902773398052702
2011	2.0361771885267412
2012	2.0920348717550685
2013	2.1113337851583784
2014	2.1431661721480437
2015	2.133100800139043
2016	2.1369001185025795
2017	2.1764386867279364
2018	2.2109034149406375
2019	2.254692313017202
2020	2.3318778244453577
2021	2.307102283292972