71% (1931)

63% (1985)

60% (1994)

53% (1996)

68% (2007)

69% (2023)

62% (2003)

70% (1927)

56% (1949)

62% (1973)

60% (2013)

71% (1921)

65% (2014)

42% (2008)

50% (1934)

74% (2005)

55% (2005)

54% (2002)

61% (1949)

54% (1949)