75% (1992)

66% (1999)

59% (1992)

43% (1992)

74% (1994)

72% (1999)

70% (1998)

73% (1996)

64% (2000)

62% (1995)

63% (1992)

56% (2000)

66% (2000)

54% (2000)

74% (1996)

63% (1996)

69% (1991)

62% (1997)

76% (1998)

59% (1992)