Year % 1982 94.48955 1983 54.5596 1984 56.57764 1985 64.91477 1986 61.59086 1987 62.77554 1988 63.40623 1998 96.30826 2000 92.33528 2001 100 2004 99.61797 2005 99.54083 2006 99.79537 2007 99.58443 2008 99.65519 2009 98.26013 2010 98.59564 2011 99.40911 2012 96.66362 2013 98.4025 2014 98.29638