Year	National currency (Billions)
2002	-0.036
2003	-0.040
2004	-0.033
2005	-0.049
2006	0.186
2007	-0.162
2008	-0.120
2009	-0.125
2010	-0.175
2011	-0.265
2012	-0.449
2013	-0.201
2014	-0.543
2015	-0.528
2016	-0.915
2017	-0.534
2018	-0.417
2019	-0.514
2020	-0.407
2021	-0.701
2022	-0.964
2023	-0.750
2024	-0.837
2025	-0.910
2026	-0.984
2027	-1.060
2028	-1.138
2029	-1.218