59% (1974)

63% (1979)

71% (1992)

57% (1978)

78% (2000)

0% (1986)

58% (1989)

0% (1974)

71% (1960)

52% (1982)

76% (1992)

70% (1997)

53% (1977)

56% (1963)

75% (2003)

67% (2001)

67% (1974)

54% (1976)

63% (1987)

70% (1965)