Year National currency per current international dollar (Units) 2001 3.507 2002 3.407 2003 3.343 2004 3.318 2005 3.396 2006 3.550 2007 3.759 2008 4.059 2009 4.072 2010 4.216 2011 4.440 2012 4.565 2013 4.644 2014 4.861 2015 5.137 2016 5.118 2017 5.155 2018 5.218 2019 5.255 2020 5.173 2021 4.903 2022 4.638 2023 4.767 2024 4.725 2025 4.742 2026 4.747 2027 4.749 2028 4.750 2029 4.749