85% (1994)

72% (1996)

63% (2014)

79% (2007)

76% (1997)

75% (2000)

61% (2004)

64% (2001)

66% (1994)

67% (1998)

65% (1995)

73% (1999)

55% (2005)

73% (1994)

62% (1992)

71% (2004)

58% (2007)

59% (2002)

62% (1997)

52% (2006)