82% (2016)

71% (2015)

69% (2017)

67% (2020)

68% (2015)

77% (2010)

63% (2014)

63% (2017)

65% (2015)

51% (2012)

58% (2014)

62% (2016)

56% (2020)

57% (2017)

56% (2012)

57% (2019)

67% (2011)

69% (2022)

68% (2013)

0% (1970)