Year % of GDP 1983 53.38225132808717 1995 23.9208973202338 1996 23.373038698202162 1997 23.108190970849307 1998 25.253811455130847 1999 23.648260996954217 2000 24.075048934333253 2001 23.04577025690654 2002 23.220085008403526 2003 23.171628579542514 2004 21.959323332056808 2005 22.427750468571638 2006 22.339739506566765 2007 24.981541136006783 2008 26.200639875110728 2009 25.03219941445231 2010 24.746004382643065 2011 26.365717362197945 2012 28.107185758109964 2013 26.411537433357374 2014 24.90262197154018 2015 26.201689216622707 2016 27.166923076923077 2017 27.629944289693594 2018 22.51219387755102 2019 23.2544923857868 2020 22.101639784946236 2021 22.275641025641026 2022 22.46853488372093 2023 22.46854347826087