Year % of GDP 1975 0.1740315857157447 1976 0.1753918070927032 1977 0.30727984666601477 1978 0.31223466053193194 1979 0.3129462046344391 1980 0.205388406744671 1981 0.20766716441512986 1982 0.2287461847314881 1983 0.22843527866202315 1984 0.23783372843387127 1985 0.25191817107739456 1986 0.2619570201440346 1987 0.26467374521953124 1988 0.33551187153713463 1989 0.3144598874365097 1990 0.317902917698259 1991 0.363948398969456 1992 0.37196856582857574 1993 0.3803954697625729 1994 0.28364148183752913 1995 0.27695439691371043 1996 0.2699738922557803 1997 0.6704651610770699 1998 0.666688611236837 1999 0.6326438424462304 2000 0.6494796439672479 2001 0.6673822202360586 2002 0.7059579860427033 2003 0.6631314145089504 2004 0.6294775083365329 2005 0.6465830946936374 2006 0.6694675786377702 2007 0.6609965470767615 2008 0.6854475721602536 2009 0.7281077483852217 2010 0.752243665134613 2011 0.8007336391859352 2012 0.8446028109785878 2013 0.868184596707153 2014 0.8879093150334676 2015 0.9866801366330425 2016 0.9722076624347736 2017 0.9588863007382696 2018 0.9397950541957382 2019 1.1002620999408959 2020 1.0860427055038144 2021 1.109424841552978 2022 1.2208267819564187 2023 1.1477052148896931