Year % of GDP 2005 43.188019992814084 2006 39.85392492808864 2007 41.41697828742257 2008 40.1402918185807 2009 48.89291582132249 2010 39.61709579165713 2011 40.194471448406695 2012 39.25215354691211 2013 41.91974412512347 2014 39.50908563060916 2015 37.06846779477291 2016 37.118101640153995 2017 37.42178972219246 2018 44.96108610486921 2019 28.84270367228121 2020 29.510271018442545 2021 32.03871717194284