Year National currency (Billions) 1980 2.036 1981 2.241 1982 2.341 1983 2.486 1984 2.709 1985 2.835 1986 3.113 1987 3.428 1988 3.646 1989 4.035 1990 4.047 1991 4.064 1992 3.914 1993 4.150 1994 4.327 1995 4.459 1996 4.754 1997 5.025 1998 5.666 1999 5.937 2000 6.119 2001 6.109 2002 6.213 2003 6.419 2004 6.889 2005 7.639 2006 8.435 2007 9.348 2008 9.570 2009 8.931 2010 9.060 2011 9.315 2012 9.220 2013 9.355 2014 9.393 2015 9.449 2016 9.666 2017 9.963 2018 10.195 2019 10.734 2020 9.560 2021 9.891 2022 11.681 2023 12.776 2024 13.725 2025 14.537 2026 15.287 2027 16.037 2028 16.824 2029 17.619