Year	National currency (Billions)
1988	-7.890
1989	-8.162
1990	-22.558
1991	-27.383
1992	-22.598
1993	-15.518
1994	-24.743
1995	-14.430
1996	4.868
1997	-1.047
1998	8.278
1999	6.055
2000	-0.854
2001	3.615
2002	2.632
2003	-13.833
2004	-6.461
2005	-25.782
2006	76.261
2007	21.140
2008	7.710
2009	9.424
2010	-4.095
2011	-17.721
2012	1.220
2013	-14.283
2014	-24.990
2015	-0.500
2016	19.785
2017	-8.989
2018	-7.240
2019	23.619
2020	-41.892
2021	-82.302
2022	-75.604
2023	-48.107
2024	-35.376
2025	-16.050
2026	20.666
2027	18.312
2028	21.400
2029	-40.513