75% (2007)

68% (2014)

40% (2014)

70% (2018)

73% (2017)

70% (2013)

70% (2016)

72% (2017)

77% (2015)

65% (2016)

50% (2013)

69% (2012)

28% (2016)

71% (2015)

72% (2017)

50% (2017)

80% (2015)

0% (1970)