0% (1994)

55% (2001)

69% (1999)

54% (1993)

60% (1992)

61% (2001)

60% (2000)

56% (1998)

0% (1994)

50% (1991)

55% (2000)

52% (1997)

63% (2000)

30% (1995)

50% (1998)

74% (1999)

60% (1999)

45% (1996)

10% (1999)

0% (1989)