Year	National currency (Billions)
1991	-0.811
1992	-0.645
1993	-0.508
1994	-0.427
1995	-0.720
1996	-1.070
1997	-0.922
1998	-0.827
1999	-1.025
2000	-1.090
2001	-1.040
2002	-0.816
2003	-0.933
2004	-0.950
2005	-1.204
2006	-1.250
2007	-1.631
2008	-0.916
2009	-2.037
2010	-0.609
2011	-2.077
2012	-4.148
2013	-4.794
2014	-3.421
2015	-4.440
2016	-5.697
2017	-5.990
2018	-5.263
2019	-4.944
2020	-9.139
2021	-8.339
2022	-10.381
2023	-10.504
2024	-9.620
2025	-9.503
2026	-10.179
2027	-11.147
2028	-12.656
2029	-14.045