64% (1977)

70% (1991)

80% (1969)

82% (1958)

55% (1982)

62% (1978)

75% (1986)

53% (1990)

0% (1986)

45% (1981)

42% (1954)

80% (1955)

57% (1975)

59% (1961)

55% (1980)

64% (1970)

0% (1977)

42% (1984)

40% (1979)

60% (1953)