Year % 1994 97.47324 1995 97.56195 1996 98.00499 1998 98.98571 1999 98.19588 2000 97.85853 2001 98.42803 2002 97.47057 2003 97.88499 2004 99.10267 2005 98.78706 2006 98.98883 2007 99.75556 2008 98.65554 2014 99.71629