Year	National currency (Billions)
1995	-0.022
1996	0.018
1997	0.009
1998	0.015
1999	0.010
2000	0.009
2001	0.010
2002	0.007
2003	0.014
2004	-0.002
2005	-0.031
2008	0.005
2009	0.002
2010	0.006
2011	0.004
2012	-0.001
2014	0.006
2015	0.005
2016	0.008
2017	0.009
2018	0.006
2019	-0.004
2020	0.006
2022	0.002
2024	-0.003
2025	-0.004
2026	-0.004
2027	-0.005
2028	-0.006
2029	-0.007