Year Percent of GDP 1990 19.749 1991 20.515 1992 16.173 1993 21.244 1994 16.169 1995 9.88 1996 9.555 1997 8.21 1998 8.788 1999 8.446 2000 5.906 2001 10.97 2002 15.467 2003 22.181 2004 19.808 2005 19.977 2006 23.496 2007 25.78 2008 25.024 2009 30.889 2010 24.089 2011 11.559 2012 7.59 2013 18.002 2014 9.812 2015 19.047 2016 38.077 2017 22.348 2018 19.542 2019 17.024 2020 15.063 2021 15.527 2022 15.127 2023 15.277 2024 11.138