Year % of GDP 1976 49.60392127251559 1977 50.528022926103475 1978 50.52671770518209 1979 51.68574910757449 1980 51.595905940743556 1981 52.20077801845833 1982 53.444953480860015 1983 54.00409201483535 1984 54.2213442805396 1985 54.5882470148506 1986 55.03606846065902 1987 55.587858681828216 1988 55.732848191014654 1989 56.067049737417754 1990 56.10866350924911 1991 56.44930137695644 1992 57.3487628734054 1993 58.39535497053222 1994 58.17479553161632 1995 58.91782258806543 1996 58.680893835945135 1997 58.4915963946458 1998 58.86279370955272 1999 58.7312187191226 2000 59.30901534447831 2001 59.487528584050395 2002 60.295696451570244 2003 60.393571257718904 2004 60.318266778560734 2005 60.57242618450148 2006 60.703378649708796 2007 60.315312487091866 2008 61.02663207765773 2009 62.16858103841212 2010 62.29415785187693 2011 62.27624367254545 2012 62.00085522485522 2013 62.32658310852823 2014 62.65379327452369 2015 62.880635600224856 2016 62.603490778099314 2017 62.56298193422077 2018 62.85933476606226 2019 63.10854421505538 2020 63.19179110860959 2021 62.150682918838854 2022 62.139237173202744 2023 62.2923255604273