67% (1997)

69% (1999)

71% (1999)

58% (1997)

52% (2001)

0% (1998)

41% (2002)

20% (2000)

0% (1993)

64% (1998)

72% (2004)

49% (2003)

51% (2002)

57% (1999)

72% (1995)

62% (1999)

0% (2000)

58% (1999)

50% (2000)

60% (1999)