Year National currency (Billions) 1998 4.677 1999 5.641 2000 3.801 2001 3.899 2002 3.691 2003 3.257 2004 3.157 2005 3.288 2006 2.561 2007 0.960 2008 5.396 2009 6.625 2010 8.608 2011 8.809 2012 9.547 2013 9.941 2014 10.736 2015 10.969 2016 10.916 2017 9.132 2018 8.075 2019 7.395 2020 8.545 2021 8.366 2022 8.204 2023 8.866 2024 9.910 2025 11.003 2026 11.924 2027 12.591 2028 12.961 2029 13.157