Year Percent of GDP 1980 43.864 1981 44.542 1982 46.429 1983 48.197 1984 47.519 1985 49.399 1986 50.038 1987 50.976 1988 49.546 1989 46.801 1990 47.06 1991 55.731 1992 60.765 1993 63.558 1994 62.124 1995 59.97 1996 58.442 1997 54.926 1998 51.358 1999 49.911 2000 46.972 2001 46.286 2002 47.505 2003 48.331 2004 48.271 2005 49.275 2006 48.341 2007 46.799 2008 48.259 2009 54.758 2010 54.755 2011 54.384 2012 56.204 2013 57.519 2014 58.109 2015 57.136 2016 55.909 2017 53.957 2018 52.823 2019 52.124 2020 51.77 2021 51.752 2022 51.921 2023 51.939 2024 51.804