Year	National currency (Billions)
1980	12.358
1981	11.651
1982	10.916
1983	11.084
1984	11.232
1985	11.301
1986	11.323
1987	11.607
1988	11.825
1989	11.939
1990	12.516
1991	12.703
1992	13.595
1993	14.386
1994	15.061
1995	15.774
1996	15.902
1997	16.401
1998	16.836
1999	17.200
2000	17.394
2001	17.547
2002	17.823
2003	18.102
2004	18.263
2005	18.758
2006	19.577
2007	19.939
2008	20.357
2009	19.939
2010	20.357
2011	21.131
2012	21.729
2013	22.215
2014	22.593
2015	23.136
2016	23.717
2017	24.254
2018	24.847
2019	25.452
2020	23.441
2021	26.231
2022	26.965
2023	27.909
2024	28.746
2025	29.407
2026	30.083
2027	30.775
2028	31.483
2029	32.207