40% (1997)

50% (1999)

58% (1997)

58% (1996)

72% (1998)

46% (2001)

0% (2003)

67% (2000)

36% (2003)

42% (2003)

0% (1989)

45% (2000)

55% (1999)

55% (2003)

57% (1997)

68% (1999)

0% (1999)

56% (1999)

52% (1999)

0% (2003)