Year % of GDP 1994 29.914688599197152 1995 32.050502086969175 1996 27.280446302779175 1997 22.699639548922573 1998 25.312085237263275 1999 21.114584026069032 2000 15.226000061875444 2001 15.437030075187968 2002 18.41978321321151 2003 16.496036795349216 2004 17.457926449200084 2005 15.971892332085064 2006 16.32906308802361 2007 17.13894786181036 2008 15.414351868402676 2009 19.276881675122056 2010 16.17011240701088 2011 13.411287825699917 2012 13.408688891512702 2013 14.563892381970403 2014 15.780912690142426 2015 22.290192940107715 2016 25.707116013053522 2017 25.492951058532903 2018 23.014633526448307 2019 23.46966056248867 2020 25.976782199835203 2021 21.876617623195184 2022 19.49182960589731