63% (1980)

81% (1987)

55% (1967)

0% (1975)

0% (1986)

50% (1957)

66% (1959)

54% (1971)

45% (2001)

57% (1977)

50% (1981)

0% (1967)

40% (1958)

55% (1977)

0% (1992)

50% (1965)

0% (1976)

0% (1998)

60% (1970)

50% (1969)