Year Percent of GDP 1984 5.917 1985 6.804 1986 7.076 1987 9.429 1988 10.476 1989 10.8 1990 12.318 1991 15.871 1992 15.829 1993 15.396 1994 13.718 1995 16.701 1996 19.264 1997 17.14 1998 17.881 1999 19.462 2000 25.846 2001 25.458 2002 26.509 2003 27.844 2004 29.428 2005 29.338 2006 27.941 2007 31.598 2008 28.15 2009 27.082 2010 26.734 2011 28.683 2012 28.322 2013 27.536 2014 25.658 2015 25.399 2016 24.166 2017 25.14 2018 26.52 2019 27.854 2020 28.914 2021 28.372 2022 27.242 2023 26.427 2024 26.879