59% (1995)

55% (1990)

52% (1989)

52% (1992)

46% (1996)

72% (1998)

56% (1990)

0% (1988)

0% (1990)

59% (1994)

54% (1995)

69% (1997)

52% (1989)

80% (2003)

62% (1989)

42% (1987)

0% (1998)

70% (1986)

68% (1988)

67% (1992)