Year	Percent of GDP (Units)
1998	53.450
1999	54.721
2000	51.669
2001	46.897
2002	44.561
2003	46.968
2004	45.413
2005	46.464
2006	47.819
2007	46.724
2008	45.512
2009	43.666
2010	44.657
2011	43.691
2012	44.241
2013	43.241
2014	43.397
2015	42.494
2016	41.797
2017	41.771
2018	42.055
2019	41.282
2020	40.769
2021	40.467
2022	39.705
2023	40.726
2024	40.151
2025	39.881
2026	39.874
2027	40.034
2028	40.209
2029	40.245