Year National currency (Billions) 1990 0.765 1991 0.974 1992 1.206 1993 1.236 1994 1.452 1995 1.656 1996 2.016 1997 1.904 1998 2.109 1999 2.217 2000 2.470 2001 2.662 2002 2.851 2003 2.997 2004 2.951 2005 3.297 2006 3.746 2007 3.883 2008 4.415 2009 4.569 2010 4.721 2011 5.127 2012 5.856 2013 6.266 2014 6.238 2015 6.354 2016 6.643 2017 6.935 2018 7.094 2019 7.314 2020 8.149 2021 9.201 2022 9.226 2023 10.528 2024 10.475 2025 10.987 2026 11.541 2027 12.344 2028 13.140 2029 13.695