Year	National currency (Billions)
2001	-0.084
2002	-0.211
2003	-0.255
2004	-0.365
2005	-0.451
2006	-0.632
2007	-0.786
2008	-1.463
2009	-1.028
2010	-0.714
2011	-0.862
2012	0.197
2013	-0.659
2014	0.074
2015	-2.665
2016	-1.575
2017	-0.356
2018	2.208
2019	1.225
2020	-4.298
2021	-3.009
2022	-8.613
2023	-5.001
2024	-3.733
2025	-4.000
2026	-4.716
2027	-5.279
2028	-6.034
2029	-6.576