85% (1994)

72% (1996)

76% (1997)

75% (2000)

79% (2007)

64% (2014)

64% (2001)

67% (1998)

61% (2004)

55% (2005)

72% (1999)

65% (1995)

71% (2004)

66% (1994)

60% (2002)

61% (1996)

63% (1992)

58% (2007)

73% (1994)

62% (1997)