80% (1975)

50% (1975)

50% (1982)

58% (1957)

55% (1951)

52% (1958)

57% (1953)

0% (1990)

69% (1963)

50% (1980)

70% (1964)

53% (1988)

60% (1951)

40% (1992)

0% (1961)

0% (1989)

50% (1966)

64% (1983)

70% (1983)

40% (1981)