Year National currency (Billions) 1998 0.124 1999 0.182 2000 0.246 2001 0.382 2002 0.560 2003 0.824 2004 1.104 2005 1.446 2006 2.190 2007 2.871 2008 3.895 2009 4.829 2010 5.722 2011 7.483 2012 9.089 2013 10.917 2014 12.949 2015 14.494 2016 16.295 2017 18.124 2018 20.025 2019 21.180 2020 20.842 2021 27.266 2022 32.084 2023 35.736 2024 38.879 2025 45.630 2026 51.610 2027 57.648 2028 61.739 2029 67.261