65% (1987)

50% (1985)

0% (1936)

0% (1980)

76% (1984)

62% (1964)

70% (1961)

81% (1978)

60% (1970)

20% (1972)

60% (1980)

48% (1984)

78% (1988)

54% (1969)

59% (1985)

0% (1938)

73% (1981)

10% (1989)

66% (1988)

56% (1979)