59% (1989)

47% (1992)

52% (1987)

54% (1998)

80% (1994)

60% (1990)

61% (1986)

67% (2001)

0% (1990)

40% (1990)

0% (1989)

60% (1993)

71% (1984)

60% (1991)

44% (1998)

70% (2003)

55% (1989)

71% (1999)

0% (1987)

27% (1998)