Year Percent of GDP 1980 34.957 1981 36.28 1982 37.364 1983 35.478 1984 36.562 1985 35.097 1986 35.196 1987 35.363 1988 39.121 1989 38.278 1990 39.048 1991 41.791 1992 42.409 1993 40.355 1994 39.989 1995 41.099 1996 41.757 1997 41.734 1998 40.006 1999 42.184 2000 42.186 2001 40.552 2002 40.056 2003 41.204 2004 42.259 2005 45.749 2006 46.526 2007 45.457 2008 41.645 2009 37.913 2010 38.329 2011 38.818 2012 40.221 2013 40.62 2014 43.741 2015 40.584 2016 56.938 2017 43.812 2018 42.745 2019 42.139 2020 41.851 2021 41.645 2022 41.259 2023 41.283 2024 41.069