88% (1986)

78% (1987)

74% (1987)

83% (1973)

0% (1978)

78% (1974)

94% (1980)

87% (1970)

68% (1976)

83% (1975)

60% (1981)

0% (1983)

88% (1980)

79% (1978)

0% (1973)

90% (1974)

0% (1982)

85% (1971)

0% (1989)

70% (1986)