Year Percent of GDP (Units) 1991 39.352 1992 47.800 1993 58.599 1994 67.870 1995 74.248 1996 75.206 1997 76.704 1998 101.523 1999 102.992 2000 86.702 2001 93.148 2002 96.352 2003 81.564 2004 62.928 2005 37.343 2006 25.831 2007 17.115 2008 12.056 2009 13.989 2010 8.426 2011 5.340 2012 3.012 2013 2.127 2014 1.541 2015 5.668 2016 12.676 2017 16.532 2018 17.639 2019 21.560 2020 31.001 2021 28.616 2022 23.933 2023 26.227 2024 27.518 2025 27.617 2026 28.354 2027 29.537 2028 30.736 2029 31.468