51% (1963)

71% (1953)

61% (1964)

56% (1945)

66% (1946)

77% (1955)

73% (1944)

63% (2006)

56% (1940)

67% (1986)

72% (1946)

61% (1967)

59% (1958)

75% (1940)

70% (1944)

65% (1932)

59% (1975)

67% (2006)

63% (1994)

65% (1953)