Year % of GDP 1990 27.171655467318267 1991 16.167464647589355 1992 17.283303636935333 1993 12.976853836262322 1994 17.256947928162937 1995 18.923220973782772 1996 20.26272577996716 1997 17.301576083115414 1998 10.445769894835975 1999 30.384753685724558 2000 40.93459851035608 2001 37.40794573643411 2002 30.739658619098876 2003 53.580181737061274 2004 51.610822824496616 2005 64.236800361687 2006 66.98894450208455 2007 63.24231823658493 2008 66.65425652239482 2009 44.870883272811234 2010 54.26760050098648 2011 21.728608616756972 2012 50.73024584772241 2013 35.128475925504624 2014 14.175343524103193 2015 4.932002359966186 2016 1.8460664993183953 2017 20.553301412098023 2018 30.57963828614392 2019 10.31570817514827 2020 4.052197358649945 2021 42.55501248020468 2022 47.49944788512717 2023 42.04697508516749