48% (1973)

70% (1975)

50% (1968)

22% (1987)

40% (1951)

40% (1962)

49% (1972)

40% (1957)

65% (1982)

55% (1967)

93% (1991)

40% (1976)

63% (1968)

61% (1980)

55% (1967)

28% (1965)

61% (2003)

30% (1951)

90% (1962)

0% (1978)