Year	National currency (Billions)
1995	-0.860
1996	-0.133
1997	-0.319
1998	-0.357
1999	-0.512
2000	-0.687
2001	-0.941
2002	-0.559
2003	-0.665
2004	-0.536
2005	-0.386
2006	-0.387
2007	-0.017
2008	-0.529
2009	-2.108
2010	-2.036
2011	-2.457
2012	-1.448
2013	-5.315
2014	-2.073
2015	-1.106
2016	-0.776
2017	-0.023
2018	0.341
2019	0.348
2020	-3.598
2021	-2.410
2022	-1.690
2023	-2.143
2024	-1.991
2025	-1.877
2026	-1.837
2027	-1.885
2028	-1.799
2029	-1.843