Year % of GDP 1983 24.104919291808688 1984 23.456098917004002 1985 23.767641320596955 1986 24.253441629553205 1987 23.32694530948934 1988 24.12159195185525 1989 23.42552877147251 1990 21.548723601360347 1991 19.661807287925004 1992 19.52141047272923 1993 17.879844427638414 1994 17.286262325044994 1995 17.138346203121092 1996 16.672387375884394 1997 16.092110222818125 1998 18.082852953193477 1999 19.61267640213303 2000 15.678704438770763 2001 15.994917762138877 2002 16.319668966437874 2003 15.185348218624798 2004 14.335780295564184 2005 13.12661864005057 2006 12.973802719248418 2007 13.716683103456202 2008 14.481740260823225 2009 15.29014814605604 2010 13.929212707137046 2011 13.512287074394585 2012 13.373974235072708 2013 13.356699162194873 2014 13.336754999214595 2015 13.492643557888595 2016 13.478748547027134 2017 13.156630846266115 2018 12.80849755869023 2019 12.712602657752232 2020 13.698414279613836 2021 13.280169137659634 2022 12.399884380763435 2023 12.529306921792196