Year Percent of GDP 1980 19.731 1981 17.325 1982 16.508 1983 16.219 1984 17.424 1985 17.505 1986 18.618 1987 19.572 1988 22.067 1989 23.349 1990 23.521 1991 22.615 1992 22.933 1993 24.279 1994 25.492 1995 25.632 1996 25.053 1997 25.996 1998 25.879 1999 28.65 2000 26.016 2001 23.994 2002 25.136 2003 24.237 2004 25.572 2005 25.594 2006 25.724 2007 25.938 2008 24.732 2009 20.589 2010 24.456 2011 22.917 2012 23.151 2013 21.855 2014 22.487 2015 22.596 2016 23.472 2017 25.298 2018 24.825 2019 24.795 2020 25.027 2021 25.094 2022 25.342 2023 25.585 2024 25.818