Year	National currency (Billions)
1990	0.736
1991	-0.522
1992	-0.636
1993	-2.013
1994	-2.554
1995	-1.443
1996	-2.466
1997	-3.415
1998	-2.163
1999	-1.785
2000	3.043
2001	2.854
2002	5.553
2003	5.793
2004	19.738
2005	15.928
2006	17.916
2007	28.609
2008	38.899
2009	45.360
2010	20.044
2011	31.974
2012	58.172
2013	139.393
2014	100.231
2015	108.604
2016	-50.829
2017	-39.993
2018	15.080
2019	6.412
2020	-11.215
2021	1.591
2022	89.017
2023	45.931
2024	45.148
2025	43.114
2026	45.587
2027	45.638
2028	44.336
2029	43.330