Year	National currency (Billions)
2000	3.522
2001	3.731
2002	3.516
2003	3.733
2004	4.351
2005	5.520
2006	4.588
2007	5.666
2008	6.027
2009	7.619
2010	8.224
2011	10.521
2012	14.029
2013	14.753
2014	16.994
2015	20.133
2016	18.357
2017	18.452
2018	19.371
2019	21.051
2020	25.172
2021	29.351
2022	30.340
2023	31.063