79% (2000)

58% (2003)

66% (2003)

61% (2002)

62% (2001)

54% (1999)

65% (2002)

49% (2002)

55% (2001)

40% (2001)

56% (2002)

63% (2003)

65% (2001)

60% (2002)

0% (2003)

51% (2001)

60% (1999)

10% (1998)

52% (2000)

72% (1998)