61% (1997)

33% (1999)

47% (1996)

54% (1993)

76% (1989)

43% (1993)

50% (1990)

30% (1996)

0% (1991)

50% (1993)

40% (1991)

56% (1991)

66% (2001)

52% (1997)

57% (1990)

100% (1992)

50% (1990)

51% (1999)

48% (1999)

47% (1997)