70% (1978)

70% (1973)

0% (1965)

80% (1982)

50% (1976)

90% (1982)

65% (1980)

0% (1972)

90% (1988)

75% (1989)

70% (1983)

73% (1984)

0% (1976)

47% (1988)

70% (1980)

100% (1966)

80% (1980)

55% (1972)

52% (1986)

0% (1991)