80% (2002)

65% (2001)

69% (2008)

73% (2001)

55% (2003)

71% (2001)

55% (2003)

62% (2002)

67% (2003)

63% (2006)

64% (2007)

61% (2005)

46% (2003)

53% (2003)

61% (2008)

61% (2008)

54% (2009)

66% (2007)

42% (2003)

56% (2004)