Year % of GDP 1985 0.174830504488676 1987 0.552230097475681 1988 0.562759522869694 1989 0.588732441405909 1990 0.568218462886332 1991 0.583263427907537 1992 0.496362277793244 1993 0.380891593939275 1994 0.418635434843989 1995 0.632478856364887 1996 0.664007194070733 1997 0.676909112820101 1998 0.947348471648493 1999 0.391087417725675 2000 0.382079268168498 2001 0.415974590900068 2002 0.454277724249501 2003 0.623059168138342 2004 0.573154706409986 2005 0.539507984654084 2006 0.616385691846383 2007 0.523310116566421 2008 0.790439021922725 2009 0.743212074330782 2010 0.838156180608274 2011 0.888463490648047 2012 0.945907199473507 2013 0.526727088783967 2014 0.788998443214345 2015 0.662618364843773 2016 0.484424417766637 2017 0.571398008790601 2018 0.278959298930402 2019 0.358531614173272 2020 0.322148755925581 2021 0.277110490356489