Year	National currency (Billions)
1983	-1.385
1984	-0.600
1985	0.047
1986	3.122
1987	3.252
1988	2.887
1989	2.621
1990	-0.169
1991	-7.124
1992	-11.648
1993	-12.641
1994	-10.683
1995	-7.756
1996	-8.469
1997	-9.982
1998	-5.743
1999	-7.028
2000	1.330
2001	1.004
2002	-8.422
2003	-6.627
2004	-6.988
2005	-3.364
2006	4.687
2007	9.283
2008	11.880
2009	3.001
2010	2.210
2011	4.345
2012	1.514
2013	-2.832
2014	-1.645
2015	3.644
2016	1.615
2017	7.738
2018	9.156
2019	9.620
2020	-20.980
2021	-2.155
2022	9.423
2023	4.241
2024	4.127
2025	1.925
2026	1.893
2027	1.938
2028	1.997
2029	2.045