Year % of GDP 1990 63.76766917293233 1991 62.031921487603306 1992 66.4622037723682 1993 67.9905757395594 1994 71.97857142857143 1995 66.95111350393414 1996 74.05187695656625 1997 81.22700766113165 1998 84.69718024857501 1999 83.32126433383216 2000 75.45627116462762 2001 71.8938322378196 2002 77.3486837780038 2003 79.74796608781737 2004 81.01116152514727 2005 80.19562518033892 2006 79.04939672679488 2007 77.34446443847901 2008 78.60517245534962 2009 76.74749530898023 2010 75.54265303135634 2011 73.91002744589453 2012 73.89110419260216 2013 71.75163531523778 2014 69.80465514725253 2015 68.84251655771317 2016 66.91818189460234 2017 66.6521599855041 2018 65.85254767143104 2019 65.50254589761839 2020 66.0420153000239 2021 67.78208089712041 2022 69.52751758408549 2023 72.87032884413837