Year National currency (Billions) 2000 0.833 2001 0.969 2002 0.904 2003 0.884 2004 0.888 2005 0.914 2006 0.877 2007 0.967 2008 1.077 2009 1.186 2010 1.296 2011 1.374 2012 1.440 2013 1.485 2014 1.552 2015 1.594 2016 1.648 2017 1.598 2018 1.587 2019 1.620 2020 1.503 2021 1.527 2022 1.588 2023 1.611 2024 1.668 2025 1.721 2026 1.774 2027 1.828 2028 1.883 2029 1.939