Year National currency (Billions) 1994 0.023 1995 -0.026 1996 -0.053 1997 -0.028 1998 0.057 1999 -0.024 2000 0.025 2001 1.171 2002 1.193 2003 0.131 2004 0.170 2005 0.364 2006 0.159 2007 0.722 2008 6.961 2009 2.149 2010 5.875 2011 5.695 2012 2.087 2013 1.018 2014 1.706 2015 -2.427 2016 -0.449 2017 -0.640 2018 4.890 2019 7.901 2020 -4.069 2021 4.547 2022 8.628 2023 2.744 2024 -0.786 2025 -1.767 2026 -1.822 2027 -1.860 2028 -2.304 2029 -2.405