63% (1981)

77% (1969)

70% (1982)

63% (1980)

67% (1982)

64% (2000)

71% (1994)

77% (1979)

0% (1994)

71% (1979)

68% (1977)

60% (1984)

67% (1978)

54% (1980)

64% (1995)

66% (1994)

69% (1976)

72% (1979)

72% (1977)

72% (1980)