Year % of GDP 1980 25.100540004167694 1981 24.574218787767602 1982 20.210043061282875 1983 15.893069625304692 1984 13.070221871006794 1985 12.251699794303379 1986 11.996111160737849 1987 12.577217543143368 1988 13.481143383535843 1989 14.738946310635578 1990 18.432897492182732 1991 13.806496274376807 1992 17.81591840110236 1993 18.669928048035707 1994 17.47094061674443 1995 19.687985701749884 1996 20.790361977649 1997 17.3233014637944 1998 20.356008693266922 1999 20.311759138407066 2000 16.525324974636124 2001 20.86876381564163 2002 20.01505163118757 2003 19.107076225536133 2004 18.55519649988771 2005 18.592989752035265 2006 21.580944821823188 2007 21.735954068526553 2008 24.99147681963009 2009 27.597513623614823 2010 24.922973519210416 2011 22.37255200365317 2012 25.74707287726095 2013 31.101728363456292 2014 35.138434511298314 2015 30.9877342544606 2016 21.825712752738802 2017 17.930968004217576 2018 16.868676205635026 2019 15.75088656142636 2020 13.665386573539875 2021 16.026193815411652 2022 16.72697342415537 2023 26.23364911956323