25% 86% 1999 37% 76% 2000 42% 100% 2001 61% 70% 2002 57% 78% 2003 53% 100% 2004 51% 100% 2005 68% 100% 2006 70% 83% 2007 67% 95% 2008 65% 80% 2009 51% 94% 2010