Year Percent of GDP 1997-01-01 0.000839679491718069 1998-01-01 0.000108782584151073 1999-01-01 -0.001378484270396550 2000-01-01 -0.001197866482198600 2001-01-01 -0.000351816083325487 2002-01-01 0.002182733783594420 2003-01-01 0.003365880234743420 2004-01-01 0.005177711792652870 2005-01-01 0.006043290358827760 2006-01-01 0.006222668888920990 2007-01-01 0.007267278232441250 2008-01-01 0.006866034915656880 2009-01-01 0.006991245839176610 2010-01-01 0.007845511946749870 2011-01-01 0.009917551492265430 2012-01-01 0.012166153298334300