Year	National currency (Billions)
1980	-8.702
1981	-15.019
1982	-12.944
1983	-16.144
1984	-13.011
1985	-12.831
1986	-13.285
1987	-10.936
1988	-10.793
1989	-12.191
1990	-11.563
1991	-13.290
1992	-15.316
1993	-14.442
1994	-10.440
1995	-9.490
1996	-8.577
1997	-4.821
1998	-2.384
1999	-1.571
2000	-0.203
2001	0.616
2002	-0.120
2003	-5.242
2004	-0.709
2005	-8.418
2006	0.779
2007	0.229
2008	-3.853
2009	-18.817
2010	-14.844
2011	-16.279
2012	-16.677
2013	-12.294
2014	-12.314
2015	-10.058
2016	-10.164
2017	-3.044
2018	-4.002
2019	-9.532
2020	-40.851
2021	-27.281
2022	-19.608
2023	-26.981
2024	-26.709
2025	-29.221
2026	-32.194
2027	-35.856
2028	-37.543
2029	-39.689