Year Percent of GDP 1980 33.472 1981 41.533 1982 40.596 1983 44.375 1984 41.263 1985 47.534 1986 42.426 1987 36.203 1988 40.364 1989 27.922 1990 23.011 1991 28.923 1992 23.976 1993 23.514 1994 22.817 1995 24.7 1996 21.035 1997 33.373 1998 41.402 1999 25.443 2000 21.585 2001 29.227 2002 31.94 2003 28.661 2004 26.516 2005 24.958 2006 26.607 2007 26.258 2008 22.82 2009 29.091 2010 26.105 2011 23.832 2012 29.115 2013 33.26 2014 35.926 2015 34.817 2016 34.175 2017 30.475 2018 30.404 2019 32.384 2020 32.827 2021 32.086 2022 30.102 2023 30.541 2024 29.62