63% (1979)

69% (1977)

62% (1982)

67% (1974)

55% (1932)

70% (1973)

67% (1963)

57% (1973)

69% (1960)

78% (1972)

64% (1977)

65% (1949)

60% (1977)

0% (1969)

66% (1975)

65% (1983)

0% (1955)

0% (1986)

62% (1949)

78% (1979)