Year	National currency (Billions)
1990	0.087
1991	0.447
1992	0.707
1993	-0.464
1994	0.634
1995	1.122
1996	1.553
1997	1.934
1998	4.558
1999	3.483
2000	3.698
2001	-1.817
2002	-6.396
2003	-7.017
2004	-4.227
2005	-0.589
2006	-3.818
2007	-2.204
2008	-3.459
2009	-15.888
2010	-12.159
2011	-10.708
2012	-12.994
2013	-20.958
2014	-10.907
2015	0.092
2016	1.088
2017	1.113
2018	4.623
2019	5.150
2020	-21.070
2021	-14.492
2022	20.551
2023	6.247
2024	-3.969
2025	-3.475
2026	-1.681
2027	0.803
2028	0.569
2029	0.936