Year % of GDP 2008 88.43893384304258 2009 92.28886769704975 2010 80.40629272936101 2011 73.21077362510188 2012 71.91293777505045 2013 75.3719706107265 2014 80.54241843434463 2015 61.69030289196367 2016 51.023349758763736 2017 41.33620246852017 2018 37.079194949375925 2019 31.737102781103932 2020 29.892546135782915 2021 24.84471526410656 2022 24.711861074658234