Year	National currency (Billions)
1997	0.248
1998	1.124
1999	-0.427
2000	-0.437
2001	0.205
2002	-5.649
2003	-16.484
2004	-17.087
2005	5.585
2006	-5.054
2007	20.450
2008	-31.722
2009	-18.282
2010	-22.511
2011	-22.885
2012	-104.565
2013	-57.067
2014	-11.687
2015	73.098
2016	-19.891
2017	-20.578
2018	18.138
2019	-32.841
2020	-207.909
2021	9.503
2022	-24.997
2023	-8.195
2024	36.190
2025	61.251
2026	78.688
2027	95.727
2028	117.802
2029	137.641