Year % of GDP 1990 55.24590688075912 1991 52.437516371029545 1992 51.20589241432564 1993 56.61700514570567 1994 53.82918810857495 1995 53.27960059312884 1996 53.85069042803079 1997 52.545758399608175 1998 53.40922507592191 1999 54.42123241112212 2000 54.57679300574425 2001 55.89930409333446 2002 55.9687244672444 2003 54.18413694399098 2004 55.9778586797828 2005 54.97361785714059 2006 54.905929010843856 2007 54.21977921627719 2008 55.82762484397629 2009 59.672190188521604 2010 56.64603362524223 2011 55.28281020746068 2012 55.954605217538045 2013 55.39645023109819 2014 55.01184448481402 2015 53.810627225743126 2016 54.95145972512686 2017 55.954414578870825 2018 56.1313060618744 2019 56.36468699572954 2020 57.53543615400232 2021 56.79270514335308 2022 61.75400856788183 2023 58.93260877256316