Year % of GDP 1990 24.418825015792798 1991 27.97670322323506 1992 30.630427790286262 1993 34.434023285899094 1994 34.866523473458116 1995 33.99825021872266 1996 34.22277639235245 1997 21.723796499251463 1998 20.951732858008377 1999 19.641144371260836 2000 18.75200427909718 2006 22.77745428449187 2007 22.990853560914417 2008 25.455500665019954 2009 30.908208407967976 2010 33.69228171034177 2011 35.30642920624202 2012 36.44949302737746 2013 45.10870736258874 2014 47.02135938254618 2015 48.29858035109965 2016 50.78514444321461 2017 53.52854119166115 2018 57.41367967152301 2019 57.8283830918394 2020 82.25603024934446 2021 87.39033165594665 2022 82.15955396069319