Year % of GDP 1989 61.82663497963644 1990 66.23216475146664 1991 69.39754122574423 1992 70.95072460820383 1993 68.05950163742912 1994 67.0168380794767 1995 66.98458651815652 1996 67.51510224516018 1997 67.70972708278865 1998 67.03361173848 1999 67.43125556316917 2000 67.93992041442941 2001 68.17849105660326 2002 67.31039066726626 2003 67.42594092845978 2004 66.1980613241314 2005 66.32402979684888 2006 65.13752804373867 2007 64.53200248747561 2008 64.57534601214657 2009 64.9632434482925 2010 64.2897862479923 2011 63.93768003001448 2012 64.65138303887498 2013 65.30121620112345 2014 65.9621561509857 2015 66.51460351990667 2016 66.49165032026823 2017 66.40919071270889 2018 66.5940830319364 2019 66.5824548301485 2020 65.40774606769514 2021 65.12819031109048 2022 66.95207105852874 2023 67.42250499125944