53% (1970)

60% (1986)

50% (1969)

64% (1958)

46% (1990)

51% (1965)

42% (1940)

56% (1968)

56% (1967)

57% (1954)

60% (1982)

60% (1976)

56% (1967)

33% (1985)

48% (1976)

50% (1970)

0% (1970)

70% (1983)

66% (1990)

68% (1979)