75% (1934)

72% (1935)

58% (1931)

70% (1934)

63% (1935)

55% (1932)

65% (1929)

56% (1932)

69% (1926)

71% (1928)

68% (1933)

60% (1932)

50% (1937)

67% (1930)

68% (1928)

72% (1939)

69% (1936)

57% (1921)

50% (1924)

65% (1926)