Year National currency per current international dollar 2011 0.381 2012 0.382 2013 0.375 2014 0.371 2015 0.367 2016 0.355 2017 0.355 2018 0.354 2019 0.355 2020 0.354 2021 0.354 2022 0.354 2023 0.354 2024 0.353