64% (1966)

60% (1941)

67% (1956)

60% (1954)

54% (1981)

67% (1979)

69% (1950)

62% (1953)

61% (1959)

69% (1949)

60% (1990)

52% (1994)

71% (1956)

71% (1998)

73% (1949)

70% (1947)

53% (1956)

63% (1986)

62% (1973)

65% (1972)