Year	Percent of GDP (Units)
1998	30.605
1999	36.156
2000	37.130
2001	36.477
2002	35.075
2003	35.765
2004	34.611
2005	34.033
2006	32.501
2007	33.114
2008	33.452
2009	33.771
2010	34.554
2011	31.954
2012	32.519
2013	35.470
2014	37.080
2015	37.330
2016	32.725
2017	32.028
2018	34.327
2019	35.869
2020	37.811
2021	38.607
2022	37.690
2023	37.742
2024	39.034
2025	39.173
2026	38.984
2027	38.342
2028	38.318
2029	38.210