58% (2023)

57% (1982)

49% (2007)

45% (2012)

70% (1998)

58% (2019)

56% (1972)

46% (1982)

40% (1989)

76% (1999)

41% (1971)

51% (1978)

62% (1968)

64% (1975)

54% (1969)

66% (1967)

56% (2002)

69% (1984)

61% (2018)

58% (2008)