Year	National currency (Billions)
1987	-0.015
1988	0.057
1989	-0.438
1990	-0.327
1991	0.012
1992	-0.172
1993	0.541
1994	0.172
1995	0.103
1996	0.525
1997	0.222
1998	0.639
1999	0.596
2000	-0.161
2001	-2.597
2002	-0.980
2003	-2.770
2004	0.794
2005	-2.075
2006	0.352
2007	0.818
2008	0.318
2009	1.246
2010	3.114
2011	-0.783
2012	-0.193
2013	-2.343
2014	5.300
2015	1.780
2016	-0.540
2017	-5.349
2018	-0.474
2019	-1.134
2020	-2.554
2021	-9.276
2022	-11.788
2023	-7.186
2024	-8.254
2025	-7.508
2026	-1.791
2027	-4.503
2028	-7.766
2029	-0.798