Year	National currency (Billions)
2004	-0.141
2005	-0.120
2006	-0.104
2007	-0.098
2008	-0.121
2009	-0.171
2010	-0.206
2011	-0.210
2012	-0.057
2013	-0.187
2014	-0.401
2015	-0.371
2016	-0.389
2017	-1.055
2018	-0.671
2019	-0.484
2020	-3.404
2021	-1.867
2022	0.013
2023	0.344
2024	0.379
2025	0.689
2026	0.690
2027	0.929
2028	0.673
2029	0.603