50% (1959)

30% (1964)

50% (1952)

51% (1955)

54% (1971)

50% (1961)

48% (1959)

58% (1986)

55% (1958)

66% (1959)

50% (1974)

70% (1980)

60% (1963)

0% (1993)

57% (1977)

0% (1996)

50% (1955)

65% (1955)

50% (1969)

50% (1957)