Year Percent of GDP 1992 8.824 1993 7.698 1994 27.942 1995 20.809 1996 21.095 1997 23.266 1998 22.686 1999 20.769 2000 18.232 2001 15.844 2002 18.159 2003 24.392 2004 22.919 2005 28.371 2006 33.55 2007 38.161 2008 43.809 2009 33.822 2010 25.969 2011 26.72 2012 20.19 2013 19.201 2014 20.825 2015 21.161 2016 19.727 2017 20.662 2018 21.608 2019 23.208 2020 23.711 2021 23.699 2022 24.071 2023 24.276 2024 24.366