Year	National currency (Billions)
1999	0.007
2000	0.006
2001	0.010
2002	0.013
2003	0.013
2004	0.023
2005	0.025
2006	0.011
2007	0.035
2008	0.018
2009	0.050
2010	-0.003
2011	-0.039
2012	-0.006
2013	-0.003
2014	0.058
2015	-0.016
2016	0.022
2017	0.045
2018	0.040
2019	0.045
2020	0.068
2021	-0.006
2022	-0.002
2023	0.013
2024	-0.085
2025	-0.115
2026	-0.137
2027	-0.157
2028	-0.187
2029	-0.199