52% (1965)

30% (1956)

52% (1957)

0% (1970)

60% (1964)

68% (1972)

58% (1968)

66% (1984)

61% (1981)

50% (1973)

0% (1937)

60% (1968)

60% (1979)

50% (1959)

55% (1977)

59% (1968)

71% (1983)

57% (1986)

52% (1956)

59% (1967)