75% (2015)

60% (2013)

54% (2014)

82% (2021)

73% (2011)

72% (2011)

74% (2007)

69% (2007)

73% (2016)

59% (2010)

68% (2016)

72% (2007)

67% (2006)

72% (2006)

68% (2010)

62% (2012)

76% (2008)

70% (2013)

54% (2009)

63% (2015)