Year	National currency (Billions)
1997	0.347
1998	0.229
1999	-1.842
2000	-1.814
2001	-2.336
2002	-2.953
2003	-4.366
2004	-3.218
2005	-2.323
2006	-2.832
2007	-5.503
2008	-7.218
2009	-9.418
2010	-7.158
2011	-7.493
2012	-15.457
2013	-25.550
2014	-24.594
2015	-10.604
2016	0.984
2017	-3.118
2018	-12.126
2019	-24.812
2020	-30.607
2021	-39.879
2022	-38.037
2023	25.244
2024	242.768
2025	-36.720
2026	-43.449
2027	-67.820
2028	-87.510
2029	-101.915