72% (2003)

74% (2000)

66% (2002)

78% (2000)

61% (2001)

58% (2003)

56% (2002)

66% (2003)

65% (1999)

60% (1999)

60% (2002)

50% (2001)

61% (2002)

51% (1999)

60% (2004)

65% (2001)

66% (1999)

63% (2003)

73% (2005)

69% (2000)