65% (1981)

58% (1999)

0% (2010)

62% (1987)

78% (2014)

66% (2008)

75% (1947)

53% (2013)

84% (2017)

77% (2009)

66% (2007)

70% (1970)

10% (2009)

85% (2011)

75% (2014)

67% (2005)

50% (2010)

41% (2015)

78% (2015)

64% (2009)