Year	National currency (Billions)
2001	0.457
2002	0.439
2003	0.393
2004	0.327
2005	0.270
2006	0.272
2007	0.412
2008	0.793
2009	0.886
2010	1.070
2011	1.389
2012	1.501
2013	1.342
2014	1.606
2015	1.559
2016	1.840
2017	1.383
2018	1.331
2019	1.396
2020	1.318
2021	1.623
2022	1.931
2023	1.659
2024	1.760
2025	1.822
2026	1.887
2027	1.953
2028	2.023
2029	2.097