70% (1979)

71% (1971)

51% (1969)

52% (1970)

66% (1966)

50% (1982)

61% (1982)

62% (1968)

50% (1964)

54% (1964)

52% (1968)

63% (1968)

68% (1973)

68% (1967)

51% (1972)

0% (1959)

0% (1967)

43% (1958)

59% (1989)

43% (1965)