Year % of GDP 1982 26.75970153956981 1983 26.68481901876536 1984 27.501931498056127 1985 28.482828262533385 1986 27.53435239347799 1987 29.03666237235396 1988 30.114297466322686 1989 29.62110803474921 1990 28.462888512756603 1991 29.262893497702002 1992 30.432114740490533 1993 31.515028985830575 1994 31.61533308866791 1995 30.062074202834527 1996 29.721803335810726 1997 30.059589491043372 1998 29.31321709493741 1999 28.083026903160963 2000 28.331248262216214 2001 28.82851387188171 2002 30.054044020882813 2003 31.881318176327273 2004 34.05754711609497 2005 34.697187234063456 2006 36.60755693554229 2007 37.50707380375296 2008 38.1622272595686 2009 36.32711401126368 2010 37.327894831312356 2011 36.41731651595637 2012 35.75940856523601 2013 34.82305956058386 2014 34.66916824304833 2015 33.178114974561915 2016 32.56294214728897 2017 33.13824718925178 2018 33.08051411338097 2019 32.41738893590175 2020 32.274229524355924 2021 33.90748232992114 2022 34.05066153672688