67% (2017)

59% (2004)

0% (1970)

64% (1940)

60% (1966)

61% (1932)

69% (1967)

71% (2015)

58% (1992)

59% (1943)

58% (1944)

54% (1978)

60% (1940)

56% (1971)

58% (1990)

58% (1925)

65% (1972)

69% (1970)

62% (1992)

60% (1955)