67% (1997)

69% (1999)

52% (2001)

41% (2002)

60% (2001)

72% (2004)

51% (2002)

49% (2003)

58% (1997)

64% (1998)

61% (2001)

62% (1999)

68% (1998)

20% (2000)

65% (2004)

72% (1995)

58% (1999)

55% (2000)

0% (1993)

68% (1997)