50% (1968)

80% (1975)

10% (1973)

77% (1987)

90% (1990)

65% (1958)

0% (1954)

53% (1963)

63% (1957)

57% (1982)

50% (1952)

50% (1955)

55% (1988)

50% (1979)

0% (1978)

67% (1970)

0% (1975)

63% (1967)

30% (1979)

80% (1948)