Year National currency (Billions) 1994 0.086 1995 0.198 1996 0.446 1997 0.215 1998 -0.011 1999 0.207 2000 0.316 2001 0.128 2002 -0.007 2003 -0.129 2004 -0.173 2005 0.199 2006 0.759 2007 1.270 2008 0.729 2009 0.349 2010 0.158 2011 -0.004 2012 -0.042 2013 -0.215 2014 -0.754 2015 -0.433 2016 -0.198 2017 -0.335 2018 -0.957 2019 -1.174 2020 -4.442 2021 -3.022 2022 -1.776 2023 -0.318 2024 -0.732 2025 -0.241 2026 0.598 2027 0.948 2028 0.850 2029 0.733