Year	National currency (Billions)
1980	-1.390
1981	-1.799
1982	-2.281
1983	-2.181
1984	-2.107
1985	-2.605
1986	-2.724
1987	-2.296
1988	-1.261
1989	-0.727
1990	-0.993
1991	-1.074
1992	-1.161
1993	-1.156
1994	-0.860
1995	-1.137
1996	-0.119
1997	0.953
1998	1.666
1999	3.282
2000	5.267
2001	1.171
2002	-0.706
2003	0.504
2004	2.029
2005	2.675
2006	5.132
2007	0.528
2008	-13.167
2009	-23.517
2010	-53.764
2011	-23.320
2012	-14.863
2013	-11.474
2014	-7.047
2015	-5.358
2016	-2.071
2017	-0.862
2018	0.437
2019	1.691
2020	-18.704
2021	-6.600
2022	8.504
2023	7.654
2024	7.557
2025	6.876
2026	6.438
2027	4.936
2028	3.615
2029	2.951