52% (1962)

84% (1968)

50% (1963)

63% (1979)

62% (1965)

53% (2001)

50% (1989)

54% (1997)

59% (1995)

65% (1966)

63% (1988)

0% (1973)

57% (2000)

67% (1987)

62% (1989)

74% (1965)

90% (1969)

57% (1989)

0% (1970)

70% (1997)