55% (1984)

68% (1981)

46% (1978)

70% (1966)

56% (2007)

73% (2018)

64% (2008)

65% (2011)

57% (1996)

70% (2005)

72% (1951)

75% (1979)

66% (2023)

63% (2020)

64% (1972)

63% (1989)

55% (2009)

59% (2014)

65% (2003)

48% (1995)