73% (1956)

28% (1991)

70% (1982)

59% (1967)

69% (1990)

82% (1979)

57% (1963)

0% (1982)

68% (1990)

61% (1983)

42% (1980)

47% (1989)

80% (1980)

80% (1955)

56% (1989)

50% (1979)

45% (1971)

57% (1968)

61% (1985)

0% (1986)