Year % of GDP 1994 39.764955795490145 1995 48.443639166447106 1996 46.22337068839182 1997 59.925269524694855 1998 62.239009167255645 1999 66.0222149082269 2000 65.46317031757845 2001 69.82246609012174 2002 66.85227920444181 2003 65.44231412537205 2004 68.2203666875648 2005 71.41763244823251 2006 76.36567801222594 2007 78.46587566595686 2008 75.48053255554856 2009 76.18170946626385 2010 79.07747782631319 2011 82.27973649571283 2012 84.28877012569674 2013 85.10628841978797 2014 85.65080752953655 2015 84.79216792499793 2016 85.80495884830955 2017 81.70339458762037 2018 77.23511549087647 2019 77.93943654076514 2020 88.44011900065951 2021 85.24586696795492 2022 77.59730649188319 2023 73.43416617465509