Year % of GDP 1992 21.767960854255268 1993 31.173873947519006 1994 30.172203224230582 1995 43.91371340523883 1996 38.73338474799256 1997 29.92315878494576 1998 52.33243612221871 1999 62.13341226742634 2000 54.7967675739453 2001 42.64967028978971 2002 39.656667449409575 2003 46.601087671684716 2004 36.610953779392766 2005 35.23405237643621 2006 25.919880123816764 2007 25.6346449489988 2008 26.360842688622295 2009 20.111734058901064 2010 31.806266265119397 2011 26.616994336900856