Year National currency (Billions) 1996 5.521 1997 7.894 1998 9.219 1999 10.571 2000 11.790 2001 12.641 2002 13.946 2003 14.690 2004 15.998 2005 17.198 2006 19.426 2007 21.896 2008 24.984 2009 24.780 2010 25.346 2011 26.210 2012 26.193 2013 26.743 2014 27.304 2015 28.929 2016 30.265 2017 31.803 2018 33.942 2019 35.785 2020 34.728 2021 39.145 2022 45.618 2023 49.239 2024 52.114 2025 55.131 2026 58.271 2027 61.272 2028 64.370 2029 67.629