Year	National currency (Billions)
1995	0.005
1996	-0.019
1997	0.154
1998	0.053
1999	-0.166
2000	-0.002
2001	0.023
2002	0.022
2003	0.122
2004	0.207
2005	0.097
2006	0.340
2007	0.360
2008	-0.557
2009	-0.441
2010	-0.092
2011	0.067
2012	-0.149
2013	-0.062
2014	0.043
2015	-0.091
2016	-0.222
2017	-0.252
2018	-0.300
2019	0.028
2020	-1.489
2021	-0.772
2022	-0.339
2023	-1.042
2024	-1.178
2025	-1.121
2026	-1.027
2027	-0.931
2028	-1.022
2029	-1.032