50% (1967)

68% (1982)

0% (1987)

60% (1976)

59% (1974)

64% (1992)

80% (1963)

50% (1963)

80% (1963)

50% (1969)

59% (1964)

0% (1966)

79% (1983)

64% (1959)

86% (1957)

60% (1963)

0% (1960)

60% (1958)

61% (1980)

57% (1974)