Year	National currency (Units)
1994	8485.054
1995	8480.406
1996	8101.817
1997	8781.492
1998	9730.863
1999	10214.165
2000	9061.578
2001	7994.925
2002	6808.316
2003	7553.418
2004	8958.357
2005	9683.607
2006	9311.403
2007	9385.614
2008	9814.740
2009	10382.813
2010	10706.064
2011	11445.668
2012	11851.484
2013	12117.774
2014	11821.840
2015	11987.506
2016	12763.882
2017	12667.920
2018	12504.616
2019	12362.586
2020	10695.826
2021	11169.828
2022	11349.121
2023	10414.885