Year National currency (Billions) 1990 0.001 1991 0.002 1992 0.002 1993 0.004 1994 0.023 1995 0.089 1996 0.106 1997 0.112 1998 0.194 1999 0.214 2000 0.437 2001 0.555 2002 0.768 2003 0.862 2004 1.138 2005 1.452 2006 1.714 2007 1.949 2008 2.129 2009 2.736 2010 2.700 2011 3.257 2012 4.690 2013 4.886 2014 5.037 2015 5.105 2016 5.592 2017 7.315 2018 7.799 2019 12.852 2020 11.695 2021 19.465 2022 26.427 2023 36.549 2024 43.293 2025 49.699 2026 55.982 2027 62.154 2028 66.983 2029 72.158