67% (1988)

48% (1982)

33% (1988)

47% (1927)

65% (1974)

51% (1976)

52% (1970)

74% (1976)

54% (1971)

63% (1966)

0% (1976)

85% (1977)

0% (1977)

50% (1971)

58% (1973)

0% (1988)

55% (1955)

52% (1934)

70% (1989)

55% (1974)