73% (1971)

67% (1948)

72% (1966)

61% (1992)

64% (1942)

56% (1991)

43% (1989)

65% (1992)

56% (2004)

59% (1991)

61% (1991)

61% (2005)

60% (1990)

63% (1964)

70% (1948)

62% (1932)

55% (1995)

59% (1996)

68% (1980)

67% (1978)