64% (2009)

80% (2007)

81% (2007)

78% (2007)

61% (2009)

59% (2010)

63% (2010)

69% (2008)

59% (2008)

69% (2006)

64% (2011)

54% (2009)

63% (2012)

59% (2005)

67% (2008)

63% (2008)

65% (2007)

68% (2007)

71% (2009)

69% (2008)