66% (2003)

58% (2003)

79% (2000)

62% (2001)

65% (2002)

55% (2001)

63% (2003)

61% (2002)

49% (2002)

56% (2002)

65% (2001)

60% (2002)

65% (1999)

40% (2001)

51% (2001)

54% (1999)

72% (1998)

54% (1997)

47% (2001)

57% (2003)