Year	National currency (Billions)
1985	-3.155
1986	-2.793
1987	-2.142
1988	-1.305
1989	-1.592
1990	-2.095
1991	-4.622
1992	-4.845
1993	-1.264
1994	1.776
1995	3.505
1996	2.588
1997	1.283
1998	-0.507
1999	-1.240
2000	0.201
2001	1.624
2002	3.410
2003	5.213
2004	6.874
2005	8.249
2006	7.804
2007	6.589
2008	2.788
2009	-3.487
2010	-11.136
2011	-10.481
2012	-4.741
2013	-2.938
2014	-0.809
2015	0.920
2016	2.610
2017	3.890
2018	3.844
2019	-7.989
2020	-14.002
2021	-11.426
2022	-13.391
2023	-14.303
2024	-14.872
2025	-11.254
2026	-8.014
2027	-5.230
2028	-1.978
2029	-0.376