80% (1972)

86% (1967)

53% (1996)

50% (1986)

0% (1980)

61% (1992)

50% (1988)

0% (1983)

53% (1992)

60% (1975)

0% (1980)

10% (1988)

90% (1987)

59% (1978)

55% (1977)

0% (1984)

70% (1994)

0% (1973)

0% (1996)

0% (1991)