64% (1980)

46% (2010)

73% (1951)

72% (2006)

65% (1977)

62% (2009)

57% (2017)

56% (2012)

67% (2014)

41% (2000)

56% (1977)

49% (2014)

59% (2014)

56% (2009)

49% (1992)

52% (2000)

52% (2011)

60% (1986)

65% (2002)

69% (2023)