Year	National currency (Billions)
1995	0.008
1996	-0.027
1997	-0.023
1998	0.043
1999	0.047
2000	0.063
2001	0.019
2002	-0.062
2003	0.115
2004	-0.258
2005	-0.040
2006	-0.015
2007	0.057
2008	0.214
2009	-0.004
2010	-0.026
2011	-0.166
2012	-0.269
2013	-0.131
2014	-0.185
2015	0.122
2016	0.140
2017	0.080
2018	0.066
2019	0.215
2020	-0.509
2021	-0.266
2022	0.216
2023	0.372
2024	0.412
2025	0.392
2026	0.388
2027	0.391
2028	0.393
2029	0.395