Year Percent of GDP 1984 27.44 1985 28.83 1986 23.708 1987 24.005 1988 27.42 1989 24.13 1990 25.292 1991 19.419 1992 14.779 1993 15.164 1994 17.28 1995 18.487 1996 20.619 1997 23.139 1998 24.75 1999 24.944 2000 24.543 2001 20.503 2002 18.445 2003 18.832 2004 20.231 2005 19.905 2006 21.696 2007 25.208 2008 24.656 2009 20.573 2010 21.313 2011 22.44 2012 20.991 2013 18.981 2014 20.359 2015 20.46 2016 19.587 2017 19.7 2018 20.557 2019 21.048 2020 21.39 2021 21.42 2022 21.412 2023 21.363 2024 21.335