Year % of GDP 1989 30.593368237347295 1990 32.61207699472213 1991 36.70933142652842 1992 48.725712256707 1993 42.84644965308145 1994 44.83260843225543 1995 52.22880346058349 1996 49.41665486700012 1997 50.59521522603494 1998 51.8249193895855 1999 49.88976793265348 2000 49.71770943797265 2001 51.46595395598972 2002 53.843741388670885 2003 53.817455083219876 2004 50.65827059097169 2005 48.80604449117536 2006 49.72147556331903 2007 50.67304761399362 2008 50.695687776940204 2009 53.76652669573602 2010 53.12021223918843 2011 53.79758316531923 2012 54.50964682380028 2013 56.12160454582199 2014 55.684830688346196 2015 56.142490968546376 2016 57.012325152629 2017 56.03276847061078 2018 53.428805517337 2019 54.172944214078676 2020 56.37294290257769 2021 54.40304043500611 2022 54.76005560265177 2023 56.88033341622396