Year	National currency (Billions)
1998	1.242
1999	0.936
2000	0.913
2001	0.926
2002	0.397
2003	0.622
2004	1.236
2005	1.592
2006	2.214
2007	2.329
2008	1.933
2009	-0.427
2010	-2.637
2011	-1.234
2012	-0.121
2013	-1.077
2014	-2.888
2015	-2.152
2016	1.742
2017	1.190
2018	0.368
2019	-0.980
2020	-3.384
2021	-3.830
2022	-1.363
2023	-5.484
2024	-5.055
2025	-5.346
2026	-5.914
2027	-4.654
2028	-4.935
2029	-4.966