Year Percent of GDP 1980 8.346 1981 8.623 1982 11.921 1983 11.936 1984 13.038 1985 12.335 1986 11.789 1987 11.723 1988 10.781 1989 9.986 1990 9.403 1991 9.789 1992 11.71 1993 12.637 1994 7.084 1995 15.616 1996 15.027 1997 13.44 1998 12.659 1999 13.18 2000 13.314 2001 13.747 2002 13.551 2003 13.897 2004 15.008 2005 15.764 2006 16.791 2007 18.881 2008 23.965 2009 23.356 2010 22.958 2011 23.454 2012 25.79 2013 26.517 2014 25.302 2015 26.458 2016 25.884 2017 23.839 2018 24.347 2019 27.822 2020 28.45 2021 28.914 2022 28.966 2023 29.208 2024 29.087