Year Percent of GDP (Units) 1992 36.680 1993 12.274 1994 15.197 1995 20.206 1996 19.205 1997 16.132 1998 17.716 1999 14.582 2000 16.488 2001 17.831 2002 17.675 2003 17.352 2004 20.343 2005 23.077 2006 23.452 2007 23.369 2008 24.830 2009 24.574 2010 26.679 2011 29.100 2012 30.916 2013 27.674 2014 27.707 2015 24.698 2016 24.094 2017 29.526 2018 42.161 2019 40.229 2020 38.447 2021 40.120 2022 39.286 2023 42.801 2024 42.466 2025 42.438 2026 42.401 2027 42.513 2028 42.737 2029 43.276