Year % of GDP 1996 1.60681998729706 1997 1.61386001110077 1998 1.71051001548767 1999 1.74985003471375 2000 1.85847997665405 2001 2.02116990089417 2002 1.97170996665955 2003 1.96781003475189 2004 1.99733996391296 2005 1.97126996517181 2006 1.94304001331329 2007 1.90357995033264 2008 1.85578000545502 2009 1.9174200296402 2010 1.82527995109558 2011 1.78714001178741 2012 1.77232003211975 2013 1.70539999008179 2014 1.71416997909546 2015 1.69324004650116 2016 1.72903001308441 2017 1.68701994419098 2018 1.73720002174377 2019 1.75573003292084 2020 1.89484000205994 2021 1.69727003574371 2022 1.55182003974915