80% (1974)

72% (1993)

81% (1971)

55% (1992)

76% (1959)

70% (1996)

74% (1995)

73% (1982)

70% (2003)

68% (1992)

70% (1975)

40% (1999)

29% (2002)

69% (1998)

0% (1996)

79% (1972)

74% (1996)

76% (2000)

70% (1976)

79% (1989)