Year National currency (Billions) 2000 0.367 2001 0.477 2002 0.470 2003 0.490 2004 0.441 2005 0.462 2006 0.454 2007 0.543 2008 0.648 2009 0.727 2010 0.882 2011 1.042 2012 1.160 2013 1.396 2014 1.447 2015 1.594 2016 1.651 2017 1.596 2018 1.564 2019 1.684 2020 1.581 2021 1.560 2022 1.672 2023 1.833 2024 1.992 2025 2.140 2026 2.292 2027 2.453 2028 2.625 2029 2.809