Year % of GDP 1989 18.58289711900175 1990 18.68045760852531 1991 20.625488663017983 1992 23.25752017608217 1993 29.650286403376548 1994 28.656094826205354 1995 36.661698956780924 1996 41.31429363648967 1997 35.493067254114294 1998 33.80530973451327 1999 21.38001795562396 2000 13.057919270989316 2001 14.429993042680394 2002 21.25972436126771 2003 15.055460801902058 2004 13.48643844328664 2005 11.366704460884492 2006 10.437401924744044 2007 12.98480374895035 2008 13.668073674250781 2009 17.556513551081586 2010 23.691813804173353 2011 26.0224005492855 2012 32.88336825109829 2013 39.59097133265604 2014 27.44234568585092 2015 35.245809427382156 2016 34.61965455930912 2017 34.80471467723926 2018 41.066507292070796 2019 38.67775349912088 2020 40.587830273358264 2021 31.272567639655325 2022 25.851042942690068 2023 29.563170133798756