Year % of GDP 1990 1.43334671231639 1991 1.70354684019902 1992 1.10996929899171 1993 0.977474119452411 1994 0.728570452420536 1995 0.746615356396145 1996 0.701959148878735 1997 0.661458599163763 1998 0.515210661088895 1999 0.436825556358793 2000 0.557045437582327 2001 0.778678694450316 2002 0.47003867905998 2003 0.416967463955133 2004 0.888200041529852 2005 0.76785403178025 2006 0.764905941611277 2007 0.695946015888964 2008 1.53373245830398 2009 0.70108342596168 2010 0.965734444102689 2011 1.07008711032612 2012 0.640579925432997 2013 0.382852117100547 2014 0.345428962074698 2015 0.314061907144002 2016 0.310276297011828 2017 0.372292874562504 2018 0.389418621280193 2019 0.399790319341053 2020 0.416571327081177 2021 0.394999591152656