83% (2009)

82% (2012)

78% (2015)

67% (2008)

71% (2014)

68% (2007)

80% (2007)

71% (2016)

75% (2008)

75% (2006)

63% (2008)

66% (2014)

67% (2008)

53% (2008)

81% (2016)

72% (2012)

78% (2010)

65% (2006)

64% (2006)

77% (2007)