Year % of GDP 1991 43.86954989099196 1992 23.254146238189712 1993 18.78239966335667 1994 20.140054806545297 1995 15.66410321752279 1996 16.205291552918027 1997 18.229255220081843 1998 17.689737348000676 1999 20.37578711793148 2000 21.144271013883692 2001 23.785435373981592 2002 30.329917187327222 2003 38.45296014219139 2004 35.87361884674011 2005 37.48789701983321 2006 38.15190687286876 2007 48.44504004618681 2008 34.58761763772182 2009 43.68970199153915 2010 47.95409501675197 2011 48.66628844501685 2012 45.611730706496836 2013 49.298175566543215 2014 47.84408478732946 2015 43.89208123295465 2016 50.805882971004436 2017 56.62547727165037 2018 59.770184776291266 2019 55.058320604719604 2020 65.36343608773608 2021 63.97237206468959 2022 55.08627150201123 2023 54.629199716722354