50% (1979)

70% (1987)

60% (1988)

61% (2010)

65% (2003)

69% (1966)

63% (1984)

46% (2009)

85% (1962)

66% (1982)

67% (1989)

0% (1985)

68% (1954)

62% (1987)

71% (1993)

0% (1984)

74% (1986)

70% (1983)

63% (2002)

62% (1986)