60% (1951)

65% (1957)

50% (1968)

50% (1949)

40% (1992)

63% (1968)

57% (1948)

64% (1968)

0% (1988)

64% (1992)

50% (1955)

58% (1969)

50% (1962)

55% (1951)

40% (1984)

50% (1948)

45% (1966)

63% (1978)

63% (1953)

0% (1983)