Year	National currency (Billions)
1997	0.859
1998	0.940
1999	1.041
2000	1.091
2001	1.183
2002	1.215
2003	1.293
2004	1.379
2005	1.436
2006	1.521
2007	1.597
2008	1.634
2009	1.480
2010	1.419
2011	1.303
2012	1.249
2013	1.264
2014	1.260
2015	1.279
2016	1.327
2017	1.353
2018	1.402
2019	1.444
2020	1.352
2021	1.569
2022	1.696
2023	1.807
2024	1.886
2025	1.948
2026	2.013
2027	2.080
2028	2.149
2029	2.221