50% (1971)

56% (1989)

55% (1982)

55% (1981)

60% (1960)

80% (1958)

56% (1957)

70% (1984)

85% (1981)

49% (1972)

72% (1987)

40% (1980)

0% (1984)

46% (1935)

53% (1976)

52% (1969)

0% (1961)

62% (1965)

60% (1964)

0% (1980)