Year % of GDP 1981 22.316396152297823 1982 31.226853012100054 1983 21.047078661879524 1984 20.03182298514542 1985 19.252575848226495 1986 13.596182583842713 1987 8.488943100132447 1988 7.947175982669247 1989 14.913955403034027 1990 23.384450692370713 1991 25.482098783947333 1992 36.49696871021743 1993 41.80193837610522 1994 40.562270614229874 1995 38.79343834413015 1996 33.03263285865688 1997 37.163973725802414 1998 30.866900481529335 1999 33.4377596402418 2000 17.42361040032915 2001 17.91789010489002 2002 16.282913045996068 2003 25.03807311894713 2004 33.657794660217235 2005 39.55757364380788 2006 45.95742472022965 2007 41.031679970481896 2008 29.961488725963886 2009 27.2284559140489 2010 26.630448355137382 2011 30.403588523709 2012 27.69827510446104 2013 26.280052017443033 2014 23.44557552321376 2015 16.40055940938782 2016 16.976093238103516 2017 17.358321189065503 2018 22.140894480847194 2019 20.258626658086794 2020 16.30696649764052 2021 20.292334368325847 2022 24.630550961881934 2023 31.383952099370205