60% (1989)

0% (1975)

50% (1987)

47% (1977)

32% (1978)

50% (1987)

85% (1997)

64% (1998)

0% (1978)

80% (1973)

0% (1974)

0% (1974)

60% (1971)

0% (1971)

0% (1976)

69% (1988)

80% (1974)

70% (1976)

70% (1981)

63% (1988)