42% (1998)

60% (1974)

62% (1993)

56% (1973)

47% (1977)

80% (1990)

69% (1988)

0% (1988)

52% (1975)

68% (1977)

63% (1971)

58% (1986)

85% (1997)

68% (1997)

80% (1973)

70% (1976)

50% (1987)

70% (1981)

61% (1997)

63% (1976)