Year National currency (Billions) 1985 3.214 1986 2.925 1987 2.737 1988 2.872 1989 3.071 1990 6.474 1991 6.466 1992 4.473 1993 4.163 1994 4.205 1995 4.142 1996 3.954 1997 3.958 1998 4.025 1999 4.018 2000 3.394 2001 4.357 2002 4.882 2003 5.374 2004 6.117 2005 6.725 2006 9.445 2007 9.850 2008 16.121 2009 13.004 2010 14.978 2011 16.811 2012 18.534 2013 18.938 2014 20.787 2015 19.038 2016 17.842 2017 18.863 2018 21.198 2019 21.317 2020 21.255 2021 21.526 2022 22.178 2023 25.242 2024 24.925 2025 24.584 2026 24.938 2027 25.596 2028 26.500 2029 27.540