50% (1964)

55% (1989)

48% (1953)

53% (1956)

60% (1944)

55% (1966)

38% (1995)

53% (1963)

50% (1970)

62% (1946)

50% (1971)

53% (1953)

50% (1961)

52% (1955)

50% (1959)

58% (1966)

55% (1970)

50% (1994)

57% (1948)

63% (1942)