50% (1989)

50% (1959)

50% (1980)

67% (1987)

68% (1966)

53% (1981)

50% (1966)

61% (1981)

0% (1986)

43% (1989)

61% (1981)

67% (1967)

65% (1963)

50% (1982)

44% (1985)

50% (1978)

63% (1969)

57% (1983)

50% (1949)

49% (1958)