68% (1987)

66% (2014)

58% (1992)

68% (1993)

74% (1973)

52% (1988)

67% (2017)

60% (1955)

67% (1966)

57% (1990)

62% (1943)

61% (1932)

62% (1999)

63% (1953)

61% (1981)

67% (1993)

63% (1984)

50% (2004)

61% (1979)

62% (2000)