Year % of GDP 1977 11.63417163963259 1978 9.07239233932959 1979 11.202952568386904 1980 6.947743162170414 1981 8.050846483589476 1982 6.384706160554836 1983 10.478075111220683 1984 12.127737486966343 1985 12.399850725141231 1986 12.864630371519656 1987 12.855528034975148 1988 9.848492891800355 1989 10.462256817246478 1990 11.81272386585257 1991 12.17679319139299 1992 12.135993770787454 1993 9.859625576148224 1994 11.935011511375947 1995 13.053911575317246 1996 6.696014648774678 1997 7.838583964730665 1998 8.24993910805123 1999 12.961964398992448 2000 11.072295936290784 2001 10.240829212964934 2002 9.624946665552816 2003 6.404792506829404 2004 6.812138026381463 2005 9.864817355999863 2006 10.234211019060826 2007 10.687240577836175 2008 12.728387285447551 2009 12.921742385906882 2010 16.136423233868673 2011 13.41339860178815 2012 10.769600510627274 2013 6.34984852529107 2014 21.155905760930676 2015 20.572775366250678 2016 20.877638426061196 2017 24.23802733095991 2018 16.397980002188653 2019 14.388129996972495 2020 18.29877000275158 2021 15.723059999785235 2022 14.932269998516318 2023 14.594846488182926