60% (1962)

0% (1984)

60% (1957)

82% (1984)

72% (1993)

60% (2002)

62% (2002)

25% (2003)

90% (1999)

78% (1998)

67% (1993)

70% (1989)

79% (1981)

0% (1987)

70% (2003)

70% (1992)

74% (2004)

67% (2004)

20% (1999)

64% (1995)