Year	National currency (Billions)
2004	0.295
2005	0.329
2006	0.322
2007	0.359
2008	0.363
2009	0.331
2010	0.314
2011	0.278
2012	0.294
2013	0.283
2014	0.312
2015	0.294
2016	0.308
2017	0.299
2018	0.322
2019	0.323
2020	0.292
2021	0.324
2022	0.384
2023	0.376
2024	0.377
2025	0.388
2026	0.401
2027	0.415
2028	0.428
2029	0.443