71% (1968)

66% (2007)

65% (2003)

60% (1986)

62% (1999)

69% (2010)

65% (2023)

74% (1993)

53% (2017)

62% (2000)

61% (2005)

55% (2017)

59% (2023)

59% (2017)

64% (2017)

64% (2011)

56% (2018)

62% (1992)

64% (2002)

62% (1994)