85% (1994)

72% (1996)

76% (1997)

74% (2000)

64% (2014)

55% (2005)

79% (2007)

63% (2001)

65% (1995)

60% (2002)

58% (2007)

54% (1996)

60% (2004)

71% (2004)

73% (1999)

67% (1998)

61% (1997)

62% (1992)

66% (1994)

58% (1998)