Year	Percent of GDP
1997	30.3
1998	36.751
1999	37.108
2000	33.838
2001	32.685
2002	31.535
2003	29.68
2004	30.155
2005	28.892
2006	29.191
2007	29.309
2008	31.726
2009	32.679
2010	29.387
2011	28.923
2012	28.229
2013	29.146
2014	31.795
2015	30.444
2016	29.125
2017	29.141
2018	28.982
2019	29.376
2020	29.165
2021	28.879
2022	28.662
2023	28.375
2024	28.119