Year	Percent of GDP (Units)
1998	50.737
1999	53.361
2000	32.238
2001	30.842
2002	26.469
2003	22.171
2004	19.734
2005	19.116
2006	13.182
2007	4.384
2008	21.598
2009	26.734
2010	33.960
2011	33.610
2012	36.450
2013	37.174
2014	39.319
2015	37.917
2016	36.069
2017	28.715
2018	23.791
2019	20.665
2020	24.606
2021	21.371
2022	17.984
2023	18.006
2024	19.017
2025	19.958
2026	20.463
2027	20.549
2028	20.136
2029	19.455