Year	Percent of GDP (Units)
1997	5.655
1998	3.986
1999	4.433
2000	7.346
2001	19.242
2002	15.232
2003	13.116
2004	13.620
2005	14.699
2006	12.656
2007	8.954
2008	6.554
2009	12.766
2010	11.592
2011	10.222
2012	8.474
2013	11.637
2014	10.929
2015	15.228
2016	15.156
2017	14.345
2018	17.815
2019	18.216
2020	20.068
2021	20.868
2022	19.662
2023	18.791
2024	18.781
2025	18.466
2026	18.288
2027	18.143
2028	17.972
2029	17.821