Year	Percent of GDP (Units)
1998	53.571
1999	39.409
2000	39.592
2001	37.987
2002	30.768
2003	23.381
2004	21.510
2005	26.978
2006	8.366
2007	14.286
2008	18.307
2009	18.748
2010	21.000
2011	21.860
2012	19.540
2013	18.504
2014	22.282
2015	30.900
2016	35.923
2017	39.598
2018	41.080
2019	41.230
2020	46.142
2021	50.288
2022	54.187
2023	54.209
2024	53.409
2025	52.361
2026	51.400
2027	50.515
2028	49.681
2029	48.911