Year % of GDP 1985 54.39679222190523 1987 53.77660000466544 1988 51.93130518022823 1989 52.33544402711679 1990 44.98794599207346 1991 42.71611457969558 1992 40.856392933228186 1993 38.703749761550036 1994 38.20172000434865 1995 42.71389165234693 1996 44.223475140953354 1997 43.06102802901406 1998 46.06099597138612 1999 28.855065511946233 2000 32.06543541437632 2001 26.440422055900587 2002 24.39621987762577 2003 22.58445016933453 2004 21.111890179514255 2005 20.075115730631495 2006 20.18291192506129 2007 22.521782697271934 2008 24.33560795327829 2009 29.347130332691513 2010 33.11016513641576 2011 30.908833958864236 2012 28.93089884315934 2013 22.163985551703078 2014 22.197266280689693 2015 21.70284609751006 2016 20.43712656198807 2017 21.172754258492144 2018 21.63322199390985 2019 22.351467481143906 2020 20.881246525733445 2021 18.635150782691433 2022 19.232526799387443 2023 20.75776085284054