Year	National currency (Billions)
1980	0.763
1981	-7.542
1982	-11.123
1983	-7.419
1984	-8.500
1985	-9.536
1986	-11.352
1987	-1.330
1988	-6.724
1989	1.682
1990	-2.729
1991	-6.253
1992	-24.196
1993	-42.178
1994	-31.066
1995	-27.143
1996	-10.479
1997	-8.428
1998	6.686
1999	14.576
2000	18.473
2001	18.707
2002	-8.677
2003	-24.623
2004	-18.401
2005	-16.188
2006	-1.147
2007	-3.061
2008	-12.246
2009	-95.664
2010	-91.912
2011	-55.222
2012	-53.230
2013	-40.517
2014	-39.766
2015	-38.473
2016	-42.275
2017	-30.429
2018	-16.070
2019	-41.611
2020	-181.034
2021	-129.772
2022	-78.640
2023	-106.781
2024	-84.735
2025	-81.996
2026	-64.023
2027	-52.078
2028	-44.082
2029	-37.055