66% (2002)

71% (2001)

80% (2002)

63% (2006)

55% (2003)

55% (2003)

73% (2001)

69% (2008)

65% (2007)

63% (2008)

63% (2002)

53% (2003)

72% (2004)

46% (2003)

56% (2004)

61% (2005)

42% (2003)

66% (2007)

58% (2008)

60% (2005)