64% (2015)

65% (2018)

69% (2015)

69% (2018)

70% (2017)

64% (2016)

62% (2012)

53% (2017)

58% (2015)

62% (2014)

66% (2009)

48% (2013)

66% (2014)

63% (2011)

66% (2011)

82% (2019)

59% (2013)

58% (1967)

80% (2011)

0% (2007)