86% (1976)

75% (1991)

0% (1987)

85% (1975)

50% (1987)

73% (1977)

50% (1986)

65% (1991)

50% (1988)

71% (1978)

76% (1983)

65% (1985)

86% (1967)

54% (1985)

60% (1982)

53% (1985)

0% (2000)

70% (1983)

80% (1979)

70% (1979)