Year % of GDP 1990 47.14768435698668 1991 39.779144183711885 1992 1.6312582610657984 1993 9.872203033844505 1994 27.942157932635826 1995 20.808569344227426 1996 21.09544716625521 1997 23.26567929227683 1998 22.686351869990386 1999 20.76888047038579 2000 21.922331401830032 2001 22.90435528620005 2002 25.418296761686864 2003 28.347949983094743 2004 29.122557700026423 2005 35.76543899410798 2006 42.2254576837845 2007 44.35162297556327 2008 47.942835821347266 2009 41.14505080290586 2010 38.81475498530765 2011 31.921798979847672 2012 24.680952747599562 2013 22.152490072631316 2014 21.283040685919303 2015 20.730530126576216 2016 18.015508673417084 2017 18.421740214872752 2018 22.399739326770103 2019 17.40852941085673 2020 19.66383294359895 2021 22.963876226158103 2022 21.634309876255603 2023 21.32933413812251