54% (1925)

62% (1941)

64% (1939)

70% (1946)

64% (1961)

62% (1926)

70% (1931)

68% (1954)

61% (1968)

69% (1949)

56% (1952)

64% (1943)

47% (1956)

50% (1937)

60% (1939)

66% (1932)

62% (1959)

62% (1943)

52% (1937)

65% (1941)