Year	Percent of GDP
1998	35.958
1999	37.436
2000	34.085
2001	33.969
2002	36.67
2003	35.263
2004	32.872
2005	31.102
2006	29.493
2007	28.811
2008	32.891
2009	36.03
2010	36.01
2011	37.166
2012	37.242
2013	39.96
2014	42.646
2015	46.537
2016	48.703
2017	45.763
2018	45.022
2019	45.568
2020	45.929
2021	45.993
2022	45.954
2023	45.884
2024	45.803