Year	% of GDP
2000	1.9636051017913365
2001	2.005028132575983
2002	2.0537350563117673
2003	2.1905386078433473
2004	2.297808275528444
2005	2.2101170980618385
2006	2.205666233091809
2007	2.2021667991269127
2008	2.322104655325753
2009	2.5280759852077517
2010	2.4782924335122973
2011	2.4372013248028703
2012	2.5208307022636824
2013	2.5540862849748946
2014	2.4977168866960677
2015	2.6271327394057127
2016	2.832722137237952
2017	3.1151845066733856
2018	3.052633029821623
2019	3.201506937518078
2020	3.991813436187156
2021	3.664162414423681