67% (1983)

69% (1993)

63% (2016)

64% (1971)

63% (1997)

56% (1999)

76% (1940)

79% (1982)

53% (1985)

61% (1984)

67% (1978)

55% (1990)

70% (1951)

69% (1948)

53% (1986)

65% (1980)

64% (1990)

70% (1962)

60% (1964)

59% (1996)