Year % of GDP 1960 32.62720951962053 1961 31.662812029107645 1962 30.768399668486534 1963 45.39366209767367 1964 35.95148158166926 1965 37.2972972972973 1966 39.56952641879576 1967 48.053907185628745 1968 49.24551461028406 1969 54.0508644027053 1970 37.98881832652105 1971 52.33111322549953 1972 72.2578801843318 1973 57.66602731222843 1974 43.26069410815174 1975 47.9022491349481 1976 46.09929078014184 1977 51.26050420168067 1978 46.92136498516321 1979 37.403040645361465 1980 31.630170316301705 1981 40.6955693187232 1982 39.666919000757 1983 43.54252108643504 1984 40.20048836910423 1985 57.280906364545146 1986 54.70433528463562 1987 45.21950722639181 1988 41.79143677932854 1989 41.19805316360913 1990 30.858941132913735 1991 33.27147925372048 1992 33.79328923297258 1993 34.548423029186594 1994 38.25104682145954 1995 35.74769715578539 1996 33.007655863773685 1997 37.232253706860504 1998 48.56843100189036 1999 38.11894810170672 2000 32.66975223102932 2001 29.36338076252749 2002 32.15018184284164 2003 28.373173710541394 2004 26.728381864986044 2005 23.940927082535477 2006 28.077592735443996 2007 26.60387457752384 2008 26.79916058323741 2009 31.33284523958516 2010 31.494170348531615 2011 28.754005205681725 2012 31.392467503924426 2013 33.27763026653738 2014 28.99943662167624 2015 27.917772954457675 2016 26.098033772419694 2017 24.84198647307125 2018 22.737521206296215 2019 21.99701622146476 2020 22.555234445279616 2021 18.949785275443507 2022 16.56083009409681 2023 17.4430657462775