Year % of GDP 1975 7.535194738905505 1976 7.784215578659073 1977 8.496007559720075 1978 9.635571363541024 1979 9.624526744747284 1980 9.90373002455434 1981 10.565058496334686 1982 9.96206426765659 1983 9.931240614004833 1984 9.683923324721826 1985 9.587680031936529 1986 8.198791071183914 1987 8.717226746009036 1988 8.633755697765247 1989 8.668656737825229 1990 8.748143666377725 1991 9.172097161074616 1992 10.743200946903354 1993 12.35468221681519 1994 12.332482075501023 1995 12.632911680119108 1996 12.093863920701828 1997 11.762952629926254 1998 10.205803588554211 1999 10.48152385367436 2000 12.858852591830786 2001 13.3948387201723 2002 11.596429130548085 2003 11.481950157395698 2004 12.170351682590853 2005 14.44478949592199 2006 14.300571952006694 2007 14.56354059206828 2008 19.27177018021823 2009 18.954480578416426 2010 19.374374113387365 2011 19.628220856720674 2012 21.700576778475416 2013 20.91308206020613 2014 20.585160463058934 2015 22.122144860267618 2016 22.413468714878746 2017 23.205009775999173 2018 24.36672079400476 2019 26.42168996224006 2020 23.11653365663262 2021 23.735361597870245 2022 27.007955439055177 2023 25.840800182033476