Year	National currency (Billions)
1999	-0.266
2000	0.776
2001	-0.615
2002	-1.754
2003	-0.604
2004	0.495
2005	4.547
2006	5.608
2007	0.420
2008	-6.855
2009	-4.189
2010	-4.709
2011	1.367
2012	3.011
2013	3.808
2014	1.697
2015	-5.313
2016	-0.361
2017	-4.425
2018	-11.864
2019	-14.896
2020	-12.021
2021	-3.486
2022	0.038
2023	-1.314
2024	-10.953
2025	-2.440
2026	1.786
2027	2.108
2028	2.310
2029	2.129