Year % of GDP 1992 1.4787031454157349 1993 3.9349535064665853 1994 2.294144436600959 1995 2.7444688594908895 1996 2.7651889068510527 1997 1.4708558768825133 1998 1.6024983650756608 1999 2.6320368122273208 2000 2.1983362454556903 2001 3.035538679916605 2002 5.557829483313493 2003 7.309495693238506 2006 11.747675485687465 2007 8.337670935191072 2008 8.879968867194139 2009 6.483289994491183 2010 5.21384354197006 2011 8.381305063782078 2012 7.6660194853646235 2013 5.648545305347053 2014 5.61516140202903 2015 4.154356731389874 2016 7.9226495076481305