45% (1971)

58% (1991)

80% (1974)

60% (1989)

90% (1982)

0% (1975)

70% (1982)

80% (1980)

66% (1986)

100% (1966)

80% (1980)

0% (1989)

66% (1978)

77% (1990)

50% (1982)

60% (1969)

47% (1974)

90% (1968)

80% (1972)

0% (1973)