69% (2011)

67% (2014)

58% (2020)

66% (2013)

60% (2015)

66% (2017)

57% (2019)

52% (2017)

64% (2006)

59% (2014)

62% (2021)

71% (2016)

57% (2018)

60% (2020)

66% (2016)

45% (2017)

58% (2007)

35% (2021)

52% (2019)

0% (1970)