53% (2015)

67% (1996)

68% (2021)

59% (1979)

57% (2004)

69% (1981)

62% (2005)

62% (1997)

58% (2010)

55% (2012)

66% (1998)

64% (2007)

55% (1992)

74% (1968)

56% (1992)

66% (2022)

60% (1968)

68% (1986)

65% (2004)

53% (1985)