Year	National currency (Billions)
1995	-0.020
1996	-0.058
1997	-0.058
1998	0.003
1999	0.003
2000	0.022
2001	-0.028
2002	-0.111
2003	0.069
2004	-0.344
2005	-0.125
2006	-0.112
2007	-0.050
2008	0.075
2009	-0.120
2010	-0.153
2011	-0.304
2012	-0.419
2013	-0.295
2014	-0.373
2015	-0.078
2016	-0.078
2017	-0.143
2018	-0.155
2019	-0.015
2020	-0.743
2021	-0.509
2022	-0.030
2023	0.110
2024	0.084
2025	0.098
2026	0.099
2027	0.107
2028	0.114
2029	0.121