0% (1952)

50% (1955)

63% (1991)

59% (1987)

50% (1989)

65% (1967)

48% (1991)

55% (1960)

55% (1984)

70% (1965)

61% (1954)

79% (1951)

0% (1965)

0% (1976)

50% (1983)

42% (1982)

0% (1974)

56% (1977)

50% (1978)

54% (1976)