Year	National currency (Billions)
1988	-0.519
1989	0.033
1990	0.658
1991	0.857
1992	0.509
1993	1.409
1994	1.440
1995	1.499
1996	1.349
1997	1.548
1998	1.029
1999	1.147
2000	2.426
2001	2.410
2002	1.945
2003	3.766
2004	3.840
2005	4.818
2006	4.003
2007	6.743
2008	12.358
2009	-3.334
2010	3.308
2011	1.715
2012	0.681
2013	-2.137
2014	-5.047
2015	-9.550
2016	-12.117
2017	-12.349
2018	-4.768
2019	-0.908
2020	-12.158
2021	-8.323
2022	5.575
2023	3.553
2024	-0.109
2025	1.600
2026	2.775
2027	5.632
2028	7.122
2029	7.965