Year	National currency (Billions)
1990	-0.431
1991	-0.561
1992	-0.525
1993	-0.170
1994	0.262
1995	0.320
1996	0.396
1997	0.194
1998	0.767
1999	0.902
2000	-0.017
2001	-0.207
2002	-0.561
2003	-1.089
2004	-1.259
2005	-2.715
2006	-3.554
2007	-5.181
2008	-6.186
2009	-6.125
2010	-6.672
2011	-7.958
2012	-8.618
2013	-13.382
2014	-14.006
2015	-11.188
2016	-6.998
2017	-3.239
2018	2.239
2019	3.779
2020	8.093
2021	8.428
2022	4.556
2023	1.715
2024	0.686
2025	0.133
2026	-0.464
2027	-0.989
2028	-1.575
2029	-2.360