Year National currency (Billions) 1997 -1.798 1998 -0.920 1999 -2.763 2000 -3.377 2001 -3.113 2002 -10.872 2003 -26.667 2004 -33.682 2005 -7.739 2006 -21.280 2007 4.102 2008 -56.964 2009 -50.236 2010 -58.931 2011 -67.716 2012 -149.184 2013 -115.374 2014 -80.536 2015 -1.058 2016 -108.219 2017 -117.408 2018 -91.511 2019 -158.093 2020 -352.349 2021 -158.509 2022 -203.299 2023 -221.910 2024 -219.232 2025 -216.733 2026 -227.341 2027 -232.527 2028 -233.700 2029 -238.160