Year % of GDP 1995 19.248259344739697 1996 13.465978212164265 1997 8.712515174708912 1998 4.678229704017041 1999 20.29565291845493 2000 18.300032897287167 2001 21.96498561716641 2002 21.266646030490172 2003 16.867637452478366 2004 24.044357988886116 2005 22.902932573302877 2006 21.776608166465568 2007 23.865671766049037 2008 23.32514813133721 2009 14.05516733440285 2010 17.00561094144805 2011 13.965616861156215 2012 16.755056758343404 2013 19.722371205061336 2014 17.55423387796116 2015 18.31307417294318 2016 18.383114581894723 2017 16.24017918085712 2018 15.878020642802099 2019 15.534022544184452 2020 16.11961472358856 2021 14.425944146462017 2022 10.022741715278556 2023 8.943714747596456