64% (2013)

57% (2015)

66% (1999)

62% (1993)

78% (1985)

69% (1999)

60% (1992)

61% (2004)

78% (1956)

62% (2003)

62% (2011)

77% (1951)

60% (2007)

67% (2008)

62% (2017)

61% (2014)

66% (1964)

64% (1998)

69% (2018)

50% (2010)