Year % of GDP 1985 41.521745053748496 1986 41.29637681683171 1987 46.64708331920974 1988 48.22360573035442 1989 52.55327085528159 1993 47.988898481395175 1994 46.85235664487752 1995 41.092591461308245 1996 42.339865707103385 1997 41.71575827632971 1998 39.09760599753812 1999 41.53376384655291 2000 36.40668360259182 2005 32.239342155967485 2006 36.52639670276673 2007 28.187183079052254 2008 29.487067763180917 2009 29.57561197352151 2010 32.36372574486659 2011 35.754363025519744 2012 35.51597344722372 2013 33.9607540109151 2014 33.00670571216763 2015 32.6551675983404 2016 33.14295745467683 2017 32.1326315888475 2018 32.68841971725193 2019 31.84387348157801 2020 29.382073297585116