Year	National currency (Billions)
1995	0.375
1996	0.059
1997	0.284
1998	-0.361
1999	0.437
2000	1.001
2001	1.004
2002	1.041
2003	1.143
2004	1.480
2005	1.073
2006	2.231
2007	2.187
2008	1.052
2009	-1.883
2010	-0.531
2011	0.402
2012	-2.034
2013	-7.664
2014	-8.024
2015	-6.228
2016	-9.458
2017	-4.897
2018	-1.504
2019	-2.074
2020	-5.526
2021	-1.522
2022	0.551
2023	-3.062