46% (1967)

47% (1983)

53% (2016)

56% (2020)

57% (1971)

52% (1958)

49% (2022)

58% (1967)

50% (1961)

63% (1966)

60% (2022)

58% (2018)

59% (1965)

61% (2010)

54% (2015)

52% (1992)

56% (2009)

66% (1977)

56% (2016)

52% (2005)