Year Percent of GDP 1980 15.473 1981 1.805 1982 10.375 1983 5.075 1984 16.778 1985 14.145 1986 5.443 1987 2.306 1988 6.006 1989 6.823 1990 8.512 1991 10.796 1992 9.455 1993 9.256 1994 10.716 1995 10.238 1996 11.726 1997 12.646 1998 12.822 1999 10.659 2000 11.018 2001 11.253 2002 12.319 2003 14.59 2004 17.045 2005 19.877 2006 24.028 2007 25.667 2008 26.699 2009 19.355 2010 21.064 2011 20.983 2012 24.031 2013 21.715 2014 19.877 2015 13.347 2016 15.058 2017 16.485 2018 16.859 2019 15.257 2020 14.091 2021 12.96 2022 11.811 2023 10.983 2024 10.177