59% (2002)

81% (1984)

56% (1962)

0% (1987)

65% (1993)

57% (1988)

78% (1998)

80% (1990)

59% (2002)

74% (1993)

64% (1990)

69% (1992)

74% (2004)

79% (1981)

52% (2008)

72% (2005)

65% (2003)

78% (1987)

67% (1984)

58% (2002)