65% (2005)

59% (2005)

61% (2008)

64% (2005)

65% (2000)

66% (1999)

65% (2003)

67% (2000)

69% (2002)

66% (2007)

65% (2007)

58% (2006)

65% (2004)

64% (1998)

61% (2006)

61% (2006)

59% (2004)

60% (2003)

55% (2007)

63% (1994)