85% (1988)

60% (1986)

75% (1986)

60% (1992)

43% (1953)

76% (1964)

72% (1981)

76% (1989)

67% (1952)

63% (1967)

75% (1964)

71% (1973)

69% (1983)

74% (1987)

61% (1991)

71% (1983)

76% (1981)

64% (1982)

69% (1986)

63% (1993)