78% (1987)

65% (1987)

47% (1982)

0% (1971)

0% (1982)

0% (1979)

64% (1994)

0% (1970)

88% (1986)

78% (1974)

0% (1970)

66% (1989)

100% (1977)

100% (1970)

70% (1986)

0% (1984)

90% (1974)

0% (1989)

0% (1974)

70% (1971)