Year	% of GDP
1999	2.75396990776062
2002	3.39525008201599
2009	2.50888991355896
2012	2.35599994659424
2013	2.6470000743866
2014	2.54200005531311
2015	2.65100002288818
2016	2.90400004386902
2017	2.87100005149841
2018	2.77300000190735
2019	3.45700001716614
2020	2.99300003051758
2021	2.57500004768372
2022	3.64800000190735