Year National currency per current international dollar (Units) 1992 1.001 1993 0.999 1994 1.104 1995 1.208 1996 1.312 1997 1.343 1998 1.451 1999 1.551 2000 1.819 2001 2.047 2002 2.341 2003 2.798 2004 3.400 2005 3.548 2006 3.834 2007 4.005 2008 4.412 2009 5.493 2010 6.002 2011 6.077 2012 6.391 2013 6.090 2014 6.072 2015 5.827 2016 5.809 2017 5.470 2018 4.984 2019 4.664