Year % of GDP 1977 10.220449550881185 1978 10.303484043110084 1979 9.91508078183059 1980 10.638084607636625 1981 5.5660578651588155 1982 5.154593963882247 1983 5.924895141200776 1984 6.373867149245727 1985 6.723835843156653 1986 7.035799444778958 1987 7.086805285792684 1988 7.278045798207958 1989 9.16018073481252 1990 10.13846488156999 1991 10.127279211283609 1992 10.504796712306721 1993 11.005141616354146 1994 9.732499387009705 1995 6.0312473809018385 1996 5.625617911485972 1997 5.189959059642337 1998 4.667951367808387 1999 11.103108164779464 2000 8.268348933005019 2001 8.985543361361547 2002 9.042919614111465 2003 9.466873168174555 2004 8.995957807137623 2005 8.86898984921695 2006 9.455211306403369 2007 9.61282431457616 2008 9.758086518604836 2009 8.94041860966605 2010 8.969540475335851 2011 8.649685484504905 2012 7.912675910147069 2013 6.971303519738878 2014 6.817849285156857 2015 6.6136243288048835 2016 6.025318750224387 2017 7.47352262278257 2018 8.403678203758156 2019 9.013661881853817 2020 6.16864001346986 2021 6.215749372202658 2022 7.054437052399066 2023 7.221689411704912