Year National currency (Billions) 1990 6.645 1991 7.844 1992 9.399 1993 10.311 1994 12.554 1995 14.321 1996 16.989 1997 18.937 1998 21.195 1999 23.376 2000 27.333 2001 30.777 2002 35.716 2003 37.624 2004 43.041 2005 46.596 2006 52.182 2007 61.583 2008 70.111 2009 75.214 2010 82.599 2011 90.108 2012 106.864 2013 117.423 2014 134.836 2015 146.019 2016 157.708 2017 171.570 2018 181.067 2019 181.211 2020 174.243 2021 183.940 2022 206.205 2023 227.505 2024 245.828 2025 266.345 2026 288.222 2027 309.705 2028 332.894 2029 357.820