Year	National currency (Billions)
1995	-0.691
1996	0.068
1997	-0.049
1998	-0.089
1999	-0.192
2000	-0.354
2001	-0.563
2002	-0.150
2003	-0.295
2004	-0.148
2005	-0.007
2006	-0.023
2007	0.342
2008	-0.269
2009	-1.788
2010	-1.643
2011	-1.939
2012	-0.931
2013	-4.590
2014	-1.017
2016	0.290
2017	0.913
2018	1.164
2019	1.069
2020	-2.940
2021	-1.824
2022	-1.173
2023	-1.548
2024	-1.276
2025	-1.098
2026	-1.019
2027	-0.973
2028	-0.770
2029	-0.707