64% (1959)

50% (1963)

50% (1988)

54% (1969)

70% (1964)

74% (1966)

59% (1967)

50% (1984)

63% (1992)

50% (1949)

50% (1964)

61% (1978)

0% (1989)

53% (1981)

81% (1972)

68% (1967)

53% (1987)

48% (1983)

58% (1991)

70% (1979)