Year % of GDP 1990 0.183389027050841 1991 0.110997318441033 1992 0.0565910675447282 1993 0.830401181586743 1994 0.536439465100375 1995 0.498550713214508 1996 0.489853876392068 1997 0.378012958126354 1998 0.330940623478682 1999 0.356253003675616 2000 0.404812702829579 2001 0.359441674513417 2002 0.257190615969929 2003 0.256611358525381 2004 0.300470034071033 2005 0.320443991598652 2006 0.295365970628096 2007 0.320032290067116 2008 0.384452093508407 2009 0.269772306103852 2010 0.337208259001387 2011 0.359867998454853 2012 0.325157520045924 2013 0.296934539699268 2014 0.288569282906269 2015 0.26302479249352 2016 0.261669771629207 2017 0.333116894336664 2018 0.289202597240663 2019 0.251989434209045 2020 0.219233025168727 2021 0.226150293544136