Year	National currency (Billions)
1980	-0.002
1981	-0.009
1982	-0.005
1983	-0.021
1984	-0.019
1985	-0.019
1986	-0.026
1987	-0.050
1988	-0.072
1989	-0.074
1990	-0.145
1991	-0.111
1992	-0.130
1993	-0.283
1994	-0.715
1995	-0.679
1996	-0.944
1997	-1.018
1998	-0.709
1999	-0.252
2000	-1.138
2001	-5.187
2002	-4.741
2003	-4.126
2004	-5.678
2005	-4.210
2006	-7.328
2007	-6.121
2008	-5.958
2009	-14.668
2010	-13.191
2011	-18.425
2012	-16.334
2013	-12.754
2014	-54.976
2015	-42.479
2016	-38.538
2017	-16.752
2018	-50.023
2019	16.593
2020	-45.055
2021	-41.023
2022	-61.566
2023	-36.485
2024	-48.714
2025	-19.624
2026	1.600
2027	31.700
2028	81.188
2029	115.400