66% (1993)

53% (1973)

43% (1980)

50% (1984)

0% (1976)

100% (1988)

64% (1990)

59% (1996)

35% (1983)

50% (1987)

68% (1974)

70% (1975)

60% (1987)

70% (1991)

85% (1989)

60% (1991)

90% (1985)

20% (1988)

70% (1988)

0% (1984)