Year National currency (Billions) 1997 2.927 1998 3.204 1999 3.468 2000 3.681 2001 4.110 2002 4.694 2003 5.064 2004 5.445 2005 6.432 2006 7.416 2007 8.567 2008 11.328 2009 14.526 2010 17.475 2011 21.010 2012 25.332 2013 28.329 2014 31.314 2015 34.681 2016 41.909 2017 47.229 2018 58.749 2019 67.982 2020 88.881 2021 99.650 2022 106.092 2023 122.245 2024 134.383 2025 144.586 2026 152.555 2027 159.357 2028 165.787 2029 171.844