Year	National currency (Billions)
1990	-0.038
1991	-0.015
1992	0.005
1993	0.016
1994	-0.008
1995	0.010
1996	-0.013
1997	-0.033
1998	-0.014
1999	0.001
2000	-0.005
2001	-0.057
2002	-0.151
2003	0.018
2004	0.050
2005	0.047
2006	-0.071
2007	-0.087
2008	-0.045
2009	-0.045
2010	-0.025
2011	-0.047
2012	-0.043
2013	-0.090
2014	-0.016
2015	0.068
2016	0.159
2017	0.173
2018	0.208
2019	0.223
2020	-0.072
2021	0.064
2022	0.084
2023	0.282
2024	0.285
2025	0.060
2026	0.063
2027	0.067
2028	0.070
2029	0.073