Year % of GDP 1990 39.54210526315789 1991 40.36394628099173 1992 37.230461067225534 1993 45.06037954140086 1994 44.89318461038961 1995 45.62116919315129 1996 46.05556728971459 1997 43.02169480177652 1998 43.41414254299353 1999 44.45190819069625 2000 52.795138469953265 2001 54.3711592635295 2002 52.90179866270144 2003 52.381519498016324 2004 54.19394129336933 2005 55.766792998472994 2006 56.285987337235696 2007 56.67262912019394 2008 55.106654775964714 2009 57.08934885268992 2010 55.09448977351725 2011 55.09494039027458 2012 56.31161573848893 2013 54.844777053184856 2014 53.82663262772658 2015 53.73018173230714 2016 53.549542279272686 2017 54.53918907113019 2018 54.32167510493616 2019 54.99499771179601 2020 56.55534163578771 2021 56.66266819294121 2022 56.82065789195172 2023 58.235378789951596