Year	% of GDP
1999	2.9084800481796247
2000	2.59340000152588
2004	2.79530000686646
2005	3.2766950130462646
2006	3.14284992218018
2008	3.7829999923706046
2009	3.6391909122467
2010	3.67997002601624
2011	3.78820502758026
2012	4.01803016662598
2013	3.9962630271911603
2014	3.48600006103516
2015	4.004634141922001
2016	3.92226004600525
2017	3.734995007514955
2018	3.66400003433228
2019	3.44067001342773
2020	3.78944993019104
2021	3.37276005744934
2022	3.24026989936829