64% (2004)

74% (2001)

62% (2008)

82% (2005)

61% (2004)

63% (2005)

45% (2002)

67% (2001)

55% (2006)

64% (2004)

71% (2006)

55% (2003)

49% (2003)

54% (2002)

61% (2003)

66% (2007)

67% (2011)

57% (2005)

46% (2006)

44% (2005)