Year	National currency (Billions)
2000	-0.012
2001	-0.397
2002	0.010
2003	-0.417
2004	-0.510
2005	-0.979
2006	-0.945
2007	0.087
2008	-0.157
2009	-0.637
2010	-1.266
2011	-1.252
2012	-1.281
2013	-2.505
2014	-2.020
2015	-3.149
2016	-4.008
2017	-3.050
2018	-3.156
2019	-2.494
2020	-2.211
2021	-5.028
2022	-6.062
2023	-4.420
2024	-4.480
2025	-2.512
2026	-2.141
2027	-2.441
2028	-1.961
2029	-3.024