Year	National currency (Billions)
2000	0.130
2001	-0.871
2002	-0.830
2003	-1.233
2004	-0.746
2005	-0.882
2006	7.774
2007	-0.583
2008	-0.448
2009	-1.591
2010	-2.364
2011	-2.034
2012	-4.145
2013	-9.678
2014	-9.076
2015	-16.280
2016	-12.298
2017	-18.466
2018	-22.863
2019	-28.264
2020	-45.789
2021	-35.984
2022	-38.632
2023	-38.616
2024	-40.397
2025	-40.024
2026	-54.878
2027	-43.215
2028	-39.209
2029	-39.575