Year Percent of GDP 1980 30.452 1981 37.074 1982 30.811 1983 33.883 1984 23.815 1985 21.945 1986 25.292 1987 22.808 1988 29.408 1989 16.755 1990 38.202 1991 24.655 1992 36.119 1993 32.389 1994 22.965 1995 -11.471 1996 0.466 1997 15.95 1998 -1.825 1999 17.392 2000 42.298 2001 25.038 2002 29.14 2003 40.322 2004 35.788 2005 27.641 2006 37.424 2007 6.655 2008 30.884 2009 13.276 2010 29.713 2011 39.8 2012 49.867 2013 48.238 2014 51.208 2015 3.134 2016 4.713 2017 25.748 2018 23.829 2019 27.244 2020 28.043 2021 26.17 2022 25.207 2023 26.029 2024 27.509