85% (1994)

80% (2007)

63% (2014)

72% (1996)

61% (2004)

74% (2000)

76% (1997)

63% (2001)

72% (1999)

65% (1995)

55% (2005)

67% (1998)

62% (1992)

73% (1994)

66% (1994)

62% (1997)

71% (2004)

58% (2007)

59% (2002)

54% (1996)