67% (2004)

67% (2005)

75% (2004)

80% (2004)

67% (2002)

53% (2003)

77% (2002)

57% (2002)

61% (2001)

63% (2005)

61% (2006)

66% (2005)

68% (2005)

61% (2001)

66% (2000)

58% (2006)

67% (2006)

63% (2001)

62% (2002)

51% (2001)