Year	National currency (Billions)
1980	-1.502
1981	-0.696
1982	-2.112
1983	3.416
1984	-1.221
1985	-1.295
1986	-2.915
1987	-4.467
1988	-3.004
1989	-3.985
1990	-4.511
1991	-5.659
1992	-3.984
1993	-5.851
1994	-7.700
1995	-10.273
1996	-7.345
1997	-5.022
1998	-5.778
1999	-6.529
2000	-8.045
2001	-3.476
2002	-4.533
2003	-0.921
2004	-4.619
2005	-5.702
2006	-8.081
2007	-7.167
2008	-7.596
2009	-10.925
2010	-11.521
2011	-8.931
2012	-6.741
2013	-6.472
2014	-2.595
2015	0.024
2016	-4.270
2017	-3.206
2018	-1.169
2019	0.880
2020	-26.500
2021	-18.736
2022	-19.025
2023	-11.125
2024	-10.738
2025	-10.890
2026	-10.434
2027	-11.267
2028	-11.055
2029	-11.190