Year % of GDP 1995 5.5775807106010555 1996 5.165583460871457 1997 4.502068574883942 1998 3.876607429052401 1999 3.2527834195662164 2000 3.126724321060064 2001 3.2534150173757723 2002 2.725759467332501 2003 2.609803199425841 2004 3.2926049013440277 2005 2.9189423843800792 2006 2.6919922837471515 2007 3.045537377432405 2008 2.592622266681498 2009 2.5589183870556296 2010 2.934532839550241 2011 3.1967487984675995 2012 3.0083603112468915 2013 3.2461907852521827 2014 2.9930281461548955 2015 2.503070663913958 2016 2.6453630332316176 2017 3.01034802405091 2018 2.414618157672727 2019 2.3694642585597854 2020 2.5688377154707758 2021 2.2418559329183805 2022 2.802102772279675 2023 2.918416474176844