Year National currency (Billions) 1995 0.006 1996 0.011 1997 0.010 1998 -0.004 1999 -0.009 2000 -0.006 2001 -0.013 2002 0.018 2003 0.007 2004 -0.036 2005 -0.013 2006 -0.013 2007 -0.009 2008 -0.003 2009 0.006 2010 0.002 2011 -0.001 2012 0.004 2013 0.010 2014 0.037 2015 0.034 2016 0.025 2017 0.053 2018 0.098 2019 0.078 2020 0.025 2021 0.018 2022 0.034 2023 0.008 2024 0.007 2025 -0.001 2026 -0.004 2027 -0.005 2028 -0.005 2029 -0.008