Year	National currency (Billions)
2005	-2.652
2006	2.504
2007	-10.393
2008	-19.899
2009	-10.578
2010	6.726
2011	-4.794
2012	2.660
2013	-6.075
2014	-19.935
2015	-16.270
2016	2.350
2017	-7.767
2018	22.486
2019	-14.971
2020	-34.131
2021	-5.786
2022	-12.692