Year % of GDP 2008 36.09258313336249 2009 38.718347814020504 2010 38.84531018434677 2011 38.51008249954345 2012 37.92612193925133 2013 36.703009505195084 2014 37.02370650664448 2015 37.30650041422714 2016 39.0023751956803 2017 41.69850104460095 2018 44.52040626784477 2019 46.719667165142795 2020 51.67908574160073 2021 50.78905509742765 2022 52.78238902087621 2023 55.41260520752943