Year Percent of GDP 1980 10.834 1981 0.052 1982 -0.655 1983 6.24 1984 7.016 1985 10.765 1986 14.654 1987 9.595 1988 10.802 1989 6.431 1990 13.538 1991 10.32 1992 7.607 1993 11.284 1994 12.908 1995 8.136 1996 10.014 1997 6.83 1998 -0.267 1999 1.588 2000 6.498 2001 3.202 2002 10.02 2003 14.947 2004 33.999 2005 28.179 2006 41.344 2007 30.462 2008 26.3 2009 36.231 2010 37.404 2011 38.303 2012 37.135 2013 33.463 2014 36.184 2015 38.88 2016 33.655 2017 37.122 2018 37.077 2019 36.717 2020 35.783 2021 35.22 2022 35.128 2023 34.145 2024 33.748