Year % of GDP 1993 2.929701383831027 1994 6.17344249201278 1995 14.103695858186075 1996 15.348682131516755 1997 12.228485654555705 1998 14.487692029718414 1999 17.6176606981466 2000 15.347570504733845 2001 13.607471023331211 2002 17.99521532883068 2003 16.55922334519986 2004 19.55432909344447 2005 22.342263600072258 2006 29.5823771635008 2007 33.90493272528756 2008 33.39157354229178 2009 29.52115649121218 2010 29.230941501965642 2011 29.43181204945947 2012 34.98032699504763 2013 29.55409362292869 2014 28.756709995884044 2015 28.589967022633267 2016 27.675562722621155 2017 22.58260051316804 2018 21.67602144104163 2019 22.446111043159142 2020 12.482220127435923 2021 13.639979735717963 2022 23.55264436833731