Year	National currency (Units)
2002	9555.404
2003	11296.097
2004	12166.141
2005	14557.087
2006	16012.960
2007	19062.112
2008	22503.294
2009	25734.841
2010	29328.405
2011	33406.827
2012	39962.174
2013	41772.320
2014	42862.455
2015	43150.711
2016	41880.715
2017	43281.492
2018	42015.519
2019	45639.637
2020	46972.096
2021	37128.682
2022	37458.716