Year annual % 1993 13.454762500710203 1994 21.23304510728687 1995 3.185809214205676 1996 8.592079096852643 1997 8.088513694885464 1998 2.0436179522709494 1999 0.08350870505601904 2000 -3.336141867187422 2001 8.649942252999622 2002 2.8733207008387183 2003 -2.7341791574589536 2004 1.3703541499198337 2005 2.734826953381699 2006 -0.9277384632812868 2007 1.4690502467941968 2008 -9.851424674112025 2009 3.8640779892551222 2010 2.1771805699441558 2011 7.692359577929224