Year Percent of GDP 1990-01-01 19.08470226236640 1991-01-01 16.90807013141800 1992-01-01 15.82551240869240 1993-01-01 13.93793897067580 1994-01-01 3.49565708727923 1995-01-01 4.94907316654743 1996-01-01 9.85922239756698 2006-01-01 11.24698208644620 2007-01-01 4.60941194437401 2008-01-01 -5.33088650644812 2009-01-01 -10.79007078280230 2010-01-01 -6.47037561550814 2011-01-01 -1.71405591714378