Year	National currency (Billions)
1994	-0.275
1995	-0.227
1996	0.164
1997	-0.085
1998	-0.306
1999	-0.118
2000	-0.071
2001	-0.275
2002	-0.404
2003	-0.609
2004	-0.694
2005	-0.405
2006	0.088
2007	0.682
2008	0.097
2009	-0.239
2010	-0.504
2011	-0.647
2012	-0.568
2013	-1.015
2014	-1.561
2015	-1.310
2016	-1.144
2017	-1.346
2018	-2.074
2019	-2.274
2020	-5.700
2021	-4.294
2022	-3.093
2023	-2.443
2024	-3.484
2025	-2.763
2026	-1.920
2027	-1.506
2028	-1.623
2029	-1.760