55% (1979)

47% (1977)

67% (2009)

61% (1967)

59% (1950)

58% (1987)

58% (1941)

53% (1994)

69% (1930)

64% (1942)

59% (1967)

0% (1970)

62% (1967)

63% (1919)

70% (1931)

62% (1956)

67% (1983)

61% (1987)

63% (1960)

61% (1952)