69% (2017)

79% (2016)

73% (2013)

70% (2011)

56% (2010)

0% (2009)

47% (2018)

65% (2007)

82% (2020)

70% (2010)

60% (2014)

71% (2017)

88% (2019)

41% (2015)

75% (2019)

70% (2015)

85% (2007)

40% (1970)

0% (2008)

32% (2016)