50% (1946)

67% (1986)

60% (1953)

50% (1970)

50% (1930)

73% (1964)

28% (1982)

42% (1963)

51% (1931)

70% (1977)

47% (1958)

56% (1977)

44% (1981)

65% (1953)

70% (1958)

60% (1983)

58% (1955)

58% (1960)

60% (1988)

70% (1981)