Year National currency (Billions) 1998 2.836 1999 3.574 2000 3.140 2001 3.250 2002 3.365 2003 3.395 2004 3.405 2005 3.702 2006 4.152 2007 4.610 2008 4.762 2009 7.529 2010 10.151 2011 11.629 2012 13.264 2013 13.550 2014 14.825 2015 15.940 2016 15.515 2017 16.631 2018 15.322 2019 17.524 2020 23.061 2021 24.535 2022 25.484 2023 25.673 2024 27.227 2025 28.165 2026 28.864 2027 29.575 2028 30.268 2029 30.879